Postfix işler

...campaigns. • A webmail front end so I can manage mailboxes, lists, and content without touching the command line. • Proper authentication (SPF, DKIM, DMARC or whatever you recommend) already set up so messages land in the inbox. • Clear, step-by-step handover documentation that lets me add new domains, warm up IPs, and monitor bounce/complaint rates. 2. Tech preferences I’m open to Postfix, Exim, PowerMTA, or any comparable stack—as long as it handles bulk traffic cleanly and gives me a straightforward UI. If you have licensing requirements for a commercial MTA, note that up front; otherwise feel free to propose an open-source route paired with something like MailWizz, Sendy, or another lightweight panel. 3. Success criteria The fir...

We need from Pakistan or India. We need for guidance. • Complete server hardening and best-practice mail stack installation (Postfix or Exim, Dovecot, SpamAssassin, etc.). • Proper DNS records—SPF, DKIM, DMARC, rDNS—set up and verified. • IP and domain warm-up plan to protect sender reputation. • Web-based dashboard or lightweight MTA/ESP front-end that lets me import lists, create campaigns, schedule sends, and view real-time stats. • Step-by-step documentation so I can replicate or maintain the configuration without outside help. If you prefer working with a particular control panel (MailWizz, Interspire, Postal, Mailcow, CPanel/WHM), let me know; I’m flexible as long as deliverability remains the priority. Please outline you...

My Magento store was migrated to a Hostinger VPS and, ever since the move, no “Order Confirmation” messages reach customers or my own business inbox. I’m routing mail through a third-party provider such as Gmail/SendGrid, but I’m unsure whether the settings were carried over correctly during the migration, or whether something deeper in Magento, postfix/Exim or the VPS firewall is blocking outbound traffic. Or is an SMTP issue where a free extension needs to be added to Magento? Hostinger support has already reviewed their side; I can forward the full chat transcript for context. What I need now is a clean, provable fix inside Magento and on the server so every new order triggers a confirmation email without fail. Acceptance criteria • Order placemen...

...email confirmation are both fine, so choose whichever combination gets us approved fastest. • Configure production-ready sending limits and the correct sending pool to sustain the 50 k-per-day volume without throttling. • Build the required IAM policies, SMTP credentials and verified identities, then walk me through where to store them safely. • Set up the SMTP endpoint and show me sample cURL / Postfix / Node or PHP snippets so I can trigger campaigns directly through the SES SMTP API. • Apply essential deliverability best practices: SPF, DKIM, DMARC, feedback loops, dedicated IP (if needed), and relevant sending rate adjustments. I don’t need integrations beyond AWS SES itself—once the SMTP endpoint is live and tested, I’ll plug it into my...

We will create a new VM at KVM 6 portal to install Postfix and Dovecot for inbound and outbound emails. We will use SSL and spam security No programming needed.

Hello: I was trying to clone one email server for installation at a different VPS. I think you can help me better and much faster with low budget. You will create a new VPS by using our KVM 6 VM You can install Postfix alone or use webmin and we use postfix You will connect Dovecot with post fix and activate SSL You will confirm inbound and outbound mail delivery We will make sure spam box is working as well. (AI by Freelancer) What I expect from you • Install and configure Postfix for SMTP submission and relay with authentication • Install and configure Dovecot so users can retrieve mail via IMAP and/or POP3 (whichever you recommend for reliability) • Enable SSL/TLS throughout, ideally with an automatic Let’s Encrypt certificate &bu...

I run a Linux server on Hetzner with CyberPanel and need an...(no 550 errors, passes Google Postmaster tools). 4. Deploy Snappy webmail under its own sub-domain with valid SSL so users simply visit https://webmail.example.com. 5. Hand over a brief summary of changes plus any commands or panel paths so I can repeat the steps later. 6. I’m open to occasional future maintenance, so keep the configuration clean and document anything custom. CyberPanel, Postfix, Dovecot, Let’s Encrypt, and Hetzner’s DNS console are already in place; feel free to bring whatever tools—dig, nslookup, mail-tester, OpenSSL—you prefer. I consider the job complete when a test message lands in Gmail’s inbox without warning, Outlook syncs flawlessly, and webmail opens o...

I am looking to hire a cold email professional who already operates their OWN warmed sending infrastructure, including: Your own warmed domains Your own warmed IPv4s Your own SMTP/PMTA/MailWizz/Postfix servers Your own rotation system (domains + IPs) Your own deliverability setup (DKIM, SPF, DMARC, rDNS, etc.) I am NOT looking for someone who uses Instantly, Smartlead, Mailgun, SendGrid, AWS SES, or any cloud ESP. I am ONLY interested in professionals with a private, fully warmed system that is ready to send immediately. Requirements: Must send from your warmed domains (not mine) Must use your warmed dedicated IPs (not shared SMTP junk) Must have a working sending system already ready Ability to send 50,000 cold emails per day (5 days a week) 1 million per month Strong i...

...PDF / JSON Auto GST filing (optional, owner-controlled) E-WAY BILL Manual-assist mode (default) Official API support (optional) Generate / cancel / track CHEQUE PRINTING CTS-2010 compliant Multi-bank templates Alignment settings Cheque issue log MOBILE INTEGRATION Upload invoice photos from mobile via local Wi-Fi Attach images to invoices FINANCIAL / ACADEMIC YEAR FY-wise data separation Prefix/postfix change on FY change FY change confirmation 5-day grace period before FY lock Auto-lock after grace Quotations editable across FYs Hidden emergency override for locked FY (owner only, fully audited) BACKUP & RESTORE Auto backup (configurable interval) Maintain last 3 verified backups Delete old backup only after verification Automatic email backup Restore preview before applying...

I have a FreeBSD 14.3 VPS and I’m ready to carve it into three Bastille jails, each sitting on its own public IPv4 address. )Two of those jails will run PowerDNS, the third will host Postfix. I will install that myself.) All three must be able to speak to one another and to the FreeBSD host itself because the databases they rely on will live on the host. Here’s the outcome I expect: • Bastille correctly installed and configured on the VPS. • Three jails created and started, each bound to its assigned public IP and reachable from the internet as well as from the host and sibling jails. • Internal networking (loopback pair, bridge, or other clean method) so jail-to-jail and jail-to-host traffic never leaves the box. • Any PF or ipfw rules, sysct...

I need help resolving an issue with Postfix on my Linux server. Currently, emails are not being delivered. Ideal Skills and Experience: - Strong experience with Postfix - Familiarity with Linux server management - Knowledge of mail logs and DNS records - Troubleshooting skills for email delivery issues

...frontend starter Backend structure Agent (panel ↔ server) concept Draft installation scripts Full technical PDF Your mission is to complete, stabilize, and secure the panel. Target systems Ubuntu 20.04 / 22.04 AlmaLinux 8 / 9 VPS & Dedicated servers Main features Server monitoring & service control (Nginx, PHP-FPM, MariaDB, Docker) Multi-domain & multi-user hosting DNS (BIND) & Email (Postfix / Dovecot) Let’s Encrypt SSL (automatic) Firewall & Fail2ban Secure Agent Token system Root panel + client panel Modern cPanel-like interface Deliverables Fully working hosting panel Secure install scripts (Ubuntu & AlmaLinux) Clean source code (ZIP) Basic documentation (English) Important rules no chatgpt No external branding or ...

I have a FreeBSD 14.3 VPS and I’m ready to carve it into three Bastille jails, each sitting on its own public IPv4 address. )Two of those jails will run PowerDNS, the third will host Postfix. I will install that myself.) All three must be able to speak to one another and to the FreeBSD host itself because the databases they rely on will live on the host. Here’s the outcome I expect: • Bastille correctly installed and configured on the VPS. • Three jails created and started, each bound to its assigned public IP and reachable from the internet as well as from the host and sibling jails. • Internal networking (loopback pair, bridge, or other clean method) so jail-to-jail and jail-to-host traffic never leaves the box. • Any PF or ipfw rules, sysct...

...existing WordPress website (including database) from another host/server. This is a practical, execution-focused task. The selected freelancer will be required to work directly on our systems, including access to: VPS (Linux) cPanel DNS / Domain settings Other relevant company resources required to complete the task Scope of Work 1. SMTP / Mail Server Setup Install and configure SMTP server on VPS (Postfix / Exim or equivalent) Configure hostname & reverse DNS Setup SPF, DKIM, DMARC Ensure proper email deliverability (avoid spam) Secure configuration (no open relay) Test successful email sending & receiving Enable email account creation 2. WordPress Migration Transfer WordPress website from existing host/server to VPS Migrate complete database and files Ensure site run...

I am looking to hire a cold email professional who already operates their OWN warmed sending infrastructure, including: Your own warmed domains Your own warmed IPv4s Your own SMTP/PMTA/MailWizz/Postfix servers Your own rotation system (domains + IPs) Your own deliverability setup (DKIM, SPF, DMARC, rDNS, etc.) I am NOT looking for someone who uses Instantly, Smartlead, Mailgun, SendGrid, AWS SES, or any cloud ESP. I am ONLY interested in professionals with a private, fully warmed system that is ready to send immediately. Requirements: Must send from your warmed domains (not mine) Must use your warmed dedicated IPs (not shared SMTP junk) Must have a working sending system already ready Ability to send 50,000 cold emails per day (5 days a week) 1 million per month Strong i...

I am looking to hire a cold email professional who already operates their OWN warmed sending infrastructure, including: Your own warmed domains Your own warmed IPv4s Your own SMTP/PMTA/MailWizz/Postfix servers Your own rotation system (domains + IPs) Your own deliverability setup (DKIM, SPF, DMARC, rDNS, etc.) I am NOT looking for someone who uses Instantly, Smartlead, Mailgun, SendGrid, AWS SES, or any cloud ESP. I am ONLY interested in professionals with a private, fully warmed system that is ready to send immediately. Requirements: Must send from your warmed domains (not mine) Must use your warmed dedicated IPs (not shared SMTP junk) Must have a working sending system already ready Ability to send 50,000 cold emails per day (5 days a week) 1 million per month Strong i...

I need a properly configured SMTP server that can handle up to 10,000 outgoing messages per day for bulk-email campaigns. At this stage I’m not tying it to Mailchimp, a CRM, or any other platform—I simpl...recommend for a sender of this size. Deliverables • Fully operational SMTP service reachable over standard ports • Authenticated sending domain with SPF, DKIM and DMARC in place • Test report confirming inbox delivery with no major blacklists triggered • Quick setup guide or screencast so I can change passwords, add users and monitor logs on my own If you have past experience deploying Postfix, Exim, PowerMTA or similar for low-to-medium volume senders, that’s exactly what I’m after. Please outline the stack you’d use and...

...preserved (LDAP/MMR involved) NG modules, LDS licensing (v3 license) Tasks may include: Review migration approach (9 → 10 Daffodil) LDAP / domain / hostname validation Zimbra proxy & services troubleshooting License (LDS) validation and migration checks Mail flow (Postfix, DNS, DKIM/SPF/DMARC) Answering specific technical questions during migration Required experience: Strong hands-on experience with Zimbra 8.8 / 9 / 10 LDAP / MMR knowledge Understanding of NG modules and LDS (Zimbra 10 licensing) Linux (Ubuntu / RHEL / Oracle Linux) Postfix & mail routing Nice to have: Proven experience with Zimbra migrations Experience with Zimbra Daffodil (10.1.x) Consulting / troubleshooting background Engagement: Short-term / hourly Initially 3–5 hours (may exte...

Gmail keeps bouncing my messages with the dreaded “550-5.7.26 This mail is unauthenticated” notice. I send through a Postfix server and manage all DNS zones inside DigitalOcean’s control panel. I already know the problem: my domain lacks working SPF and DKIM records. I need an expert who can generate the correct tokens, publish them in DigitalOcean DNS, and tie everything back into Postfix so Gmail finally recognises the messages as authenticated. Scope of work • Create or repair one SPF record that aligns with my current sending path. • Generate a DKIM key pair, add the TXT record in DigitalOcean, and wire it up to Postfix (OpenDKIM or equivalent). • Verify both records with common testing tools (Google Postmaster, dig, etc.)...

My production mail server runs on Debian and every main layer—Postfix, Zimbra and the Kernel—now needs to move to the latest stable releases. All three components must come through the process with complete data integrity, so the job starts with a solid backup plan: at the moment no backup exists and I will rely on you to design, create and test one before any package is touched. Once the safety net is in place, the work continues with a carefully staged upgrade. Postfix, Zimbra and the Kernel should be brought up to date, followed by migration to the current Debian stable. I expect minimal downtime, full preservation of mailboxes, calendars, contacts, aliases and logs, and a short verification window after each major step to catch issues early. The assignment i...

I’m looking for someone who can physically come to our New Delhi office—remote work is not an option—to take charge of an u...configuration, and handle a full upgrade-and-migration cycle to new hardware without disrupting mail flow. You’ll be expected to arrive on-site, review the existing Ubuntu environment, adjust any misconfigurations, migrate data and user accounts cleanly, then validate that everything functions exactly as before—or better—once the cut-over is done. Solid knowledge of Ubuntu server administration, Postfix/Dovecot, DNS, SSL/TLS and mail security best practices will be essential to get this wrapped up quickly. If you’re available to start immediately in New Delhi and can demonstrate hands-on experience with Mobodoa at t...

...notification emails every day. I want to keep costs down without sacrificing inbox placement, so the solution must include solid spam filtering, real-time email tracking with usable analytics dashboards, and the ability to trigger automated responses such as application-received or interview-scheduled messages. I’m open to cloud services (Amazon SES, Mailgun, SendGrid, etc.) or a self-hosted stack (Postfix, Exim, Mailcow, or similar). What matters is that the final setup: • Sends >10k emails daily with stable throughput and high deliverability • Provides built-in or easily integrated tracking & analytics for opens, clicks, and bounces • Supports basic autoresponder logic for common job-site events • Filters out spam to protect domain reput...

..."Enterprise" editions. It must be the Community/Open-Source edition only. Scope of Work & Technical Requirements: 1. Infrastructure & OS: o Deploy on on-premises Linux infrastructure (e.g., Ubuntu LTS). o Optimize OS kernel and file systems for high I/O performance (2000+ concurrent users). 2. Software Stack (Strict FOSS Policy): o Must use a fully open-source stack (e.g., Mailcow, SOGo, or a custom Postfix/Dovecot stack). 3. Outlook Compatibility (The Critical Requirement): o Must implement Open Source ActiveSync (e.g., via SOGo, Z-Push, or Grommunio Community) to ensure two-way sync. o Outlook: Users must be able to use Outlook (Desktop) to sync Email, Calendar, and Contacts without purchasing third-party plugins. 4. Webmail & Collaboration: o Deploy a mod...

I have an Ubuntu-based VPS that I want to turn into a reliable mail-sending host using Postfix. The instance is fresh; nothing has been installed yet, so you’ll be starting from a clean slate. The only protocol I need exposed is SMTP—no IMAP or POP3 boxes to manage—just rock-solid outbound and relay capability. Alongside the core Postfix install, I want every standard security measure baked in: TLS certificates for encrypted transport, proper SPF and DKIM records generated and tested for my domain, plus concise firewall rules that leave only the required ports open. Deliverables • Postfix installed and sending test messages successfully over SMTP • Valid SSL/TLS configuration (Let’s Encrypt is fine) • SPF and DKIM records ...

...Overview We are looking for a skilled Penetration Tester with specialized expertise in email server security to conduct thorough assessments of our email infrastructure. The ideal candidate will identify vulnerabilities in SMTP, IMAP, POP3 servers, and associated email security mechanisms. Key Responsibilities • Conduct comprehensive penetration testing on email servers (SMTP, IMAP, POP3, Exchange, Postfix, Sendmail) • Test email authentication mechanisms including SPF, DKIM, DMARC, and DANE implementations • Identify and exploit vulnerabilities such as open relays, SMTP injection, user enumeration attacks • Assess email encryption implementations (TLS/SSL, S/MIME, PGP) • Perform phishing simulation and social engineering tests targeting email users &bull...

My Webmin / Virtualmin mail server was running smoothly until I had to reinstall Postfix. Since then, messages are bounced or never show up because the two core services are tripping over file-system restrictions: • Dovecot is throwing file and folder permission errors whenever it tries to reach users’ maildirs. • Postfix will no longer accept incoming mail, clearly a permission-related failure. I need a clean overhaul of user, group and directory rights so that both services can coexist again without rejecting or losing mail. The job is finished when: 1. Dovecot reads and writes every mailbox without permission warnings in the logs. 2. Postfix reliably receives external messages and hands them off to Dovecot. 3. Test messages in and out comple...

...jobs, and performance optimization. Multi-user system with custom roles and permissions, fully isolating users’ contacts, lists, campaigns, and reports. Per-user sending quotas/credits with daily/monthly/total limits, auto-throttling when limits are reached. Assignment of individual SMTP settings per user, supporting multiple SMTPs while maintaining deliverability. Complete SMTP server setup (Postfix/PMTA) with Dovecot IMAP and optional Roundcube webmail; email headers show only sender domain and sending IP. DNS configuration including SPF, DKIM, DMARC, MX, reverse DNS, and deliverability monitoring; bounce/complaint handling included. Testing of sending, quotas, SMTP, DNS, and deliverability; validation that no server hostname or internal IP appears in email headers....

...email infrastructure engineer to design and configure a high-deliverability outbound email system for our SaaS platform. The project involves setting up a Dallas-based Postal + Postfix architecture using Ubuntu 24.04, MariaDB, Nginx, and dedicated IPv4 pools. You will configure Postal Inbound (API only), Postfix routing with provider-based IP pools (Microsoft, Google, Other), and Postal Outbound for SMTP delivery. Optimizing deliverability, SPF/DKIM/DMARC, PTR records, warmup schedules, and IP reputation management is essential. You must have hands-on experience with high-volume transactional email, multi-IP Postfix configurations, Microsoft 365 deliverability, DNS authentication, SMTP routing logic, queue management, and Linux server hardening. Familiarity with Doc...

Hiring an experienced professional to install MailWizz or Acelle, configure SMTP integration, and deliver strong, reliable email deliverability. Requirements: - Install & configure MailWizz or Acelle - Set up SMTP (Postfix, Exim, or PowerMTA) - Configure SPF, DKIM, DMARC, rDNS - Integrate SMTP with mailing app and perform delivery tests - Optimize inbox placement and overall sending performance - Strong expertise in SMTP/MTA configuration, DNS authentication, and deliverability management Engagement: One-time setup with potential for ongoing support on emergent issues, with quick response and efficient resolution.

Hiring a skilled professional to install MailWizz or Acelle, configure SMTP (Postfix / Exim / PMTA), implement SPF, DKIM, DMARC, rDNS, and deliver a fully optimized, high-deliverability sending environment. One-time setup with the option for ongoing support.

Hiring: Senior Systems Engineer — Build ISP-Level Email Filtering Prototype (Postfix, rspamd, Vault, AEAD) Remote • Contract (4–6 weeks) • Equity available We are building the first working prototype of , an ISP-level scam/spam/malware prevention system that moves message filtering away from user devices and into the provider network. A patent is filed, and now we need an expert engineer to assemble the prototype using commercial off-the-shelf components. What You Will Build A fully operational ISP-style email pipeline demonstrating: SMTP ingress (Postfix or Exim) Filtering (rspamd + ClamAV) Malicious quarantine inside ISP AEAD envelope encryption (AES-GCM or ChaCha20-Poly1305) Session key wrapping using Hashicorp Vault Provider-signed provenan...

...login/tenant for our long-term Microsoft 365 use. • Stand up Microsoft Teams in that tenant, including all required backend settings. • Create the first batch of user accounts (about a dozen) and verify their access. • Configure baseline Teams policies and permissions—messaging, meetings, and external access—so we have a secure, functional starting point. We currently run our own Linux Postfix server for our corporate email domain (). We will need to migrate users from that server to 365. I’m expecting this to be a short engagement—like a $150 starter package—so efficiency is key. If you know the admin portals, PowerShell shortcuts, and the typical pitfalls of multi-subscription environments, let’s connect and knock this ...

...several small client sites. Recently Postfix keeps launching, then immediately exiting, interrupting outgoing and incoming mail. I have not altered any server configs or installed new software, so something deeper is at play. I need someone to: • Inspect systemd-journal and Postfix logs, identify the root cause of the crash/restart cycle. • Apply the necessary configuration or package fix so Postfix starts cleanly and stays active. • Validate that mail flow works for all virtual domains managed by Virtualmin. • Provide a brief summary of what went wrong and the steps you took, so I can reference it later. - All emails must stay safe and intact. SSH root access and Webmin credentials are ready as soon as we start. If you are comfortable tr...

...Review the existing rule set, then create a clean group of rules that closes unnecessary ports while keeping web, SSH and mail services functional. • Tidy up filter policies that tie into the DNS Resolver, add the correct DNS reflection settings for internal hosts, and be sure split-DNS look-ups resolve exactly the same from inside and outside the network. • Re-establish outbound mail on Poste (postfix/SMTP 587) and verify IMAP/POP login is restored. Right now we can receive mail but cannot send, and the web-login is disconnected. • Publish and propagate the proper MX records so external lookups stop failing with the “No MX records found” error. The job is complete when: 1. pfSense passes traffic only on the intended ports and DNS queries resolve...

...Audit Log, SEO fields, IP allowlist Note: No off-the-shelf CMS/services (Strapi, EmailJS, etc.). All source code belongs to us; deployment runs on OVH. • A custom admin panel that lets me create, read, update, and delete Products, Blog posts, and captured Leads. • Self-hosted database, backend, and file storage—those three pieces must live on my infrastructure. • A self-hosted mail service (Postfix, Mailhog, or similar) to take over all outgoing email tasks previously handled by EmailJS. • Migration scripts or utilities that move the existing Strapi content and files into the new stack without data loss. ""Scope / Tasks 1) Backend (Self-Hosted) Public API (+ admin API if needed), REST (GraphQL optional) RBAC: Admin / Editor / Viewe...

My Linux mail server sends messages straight to the spam folder even though the IP is clean and SPF, DKIM, and DMARC are already configured. I occasionally see brief service outages as well. I’m looking for an email specialist who can quickly review my current setup, pinpoint what Gmail, Outlook, and other providers still dislike, and get messages landing in the inbox. Key tasks • Audit the Postfix/Exim configuration and DNS records to verify rDNS, HELO, header alignment, and TLS settings. • Spot content or list-quality factors that might trigger spam filters. • Apply fast, low-impact fixes where possible and give me a concise checklist for any larger changes. • Run live tests to confirm inbox placement and stability across major providers. Deliv...

We are looking for an experienced Linux/Plesk administrator to review and fix issues on our Plesk server running on Debian 11. The system is operational, but several components – especially the mail services (Dovecot/Postfix) – are not working properly after recent issues. In the background, a Proxmox Mail Gateway (PMG) is running as a separate filtering and relay system. The mail flow is configured as PMG → Plesk → Mailboxes. There is also an API integration or automated script that adds domains from Plesk directly into PMG for mail relay and filtering. It is possible that part of the current issue is related to this integration. Current issues: Plesk Webmail (Roundcube) not accessible or showing errors Dovecot not starting properly / SSL configuration erro...

I’m looking for a seasoned Linux admin who can take full ownership of a production-grade server that currently runs Postfix + Dovecot for email, a web server delivering both static and dynamic content, a MySQL datastore, and three core backend services (API, authentication, and data-processing layers) that feed our mobile app. Your mission is to keep everything fast, secure, and highly available. Day to day you’ll be hardening Postfix/Dovecot, tightening firewall rules, troubleshooting the occasional delivery hiccup, and fine-tuning VHosts so the web layer stays responsive while we push new releases. On the backend side I’ll rely on you to monitor resource usage, roll out updates with minimal downtime, and make sure each service talks to MySQL efficiently...

...(recipient, subject, message) is already structured and ready to go. Important: I need pre-warmed domains and IPs ready for immediate use! Requirements – Provide SMTP access or a REST API for integration – Infrastructure must be self-hosted and independent from third-party platforms – Pre-warmed IPs/domains required for high deliverability from day one – Experience with mail server setups (e.g., Postfix, Mailcow, Mailu, Exim) – Expertise in: • SPF, DKIM, DMARC, header optimization • Domain/IP warm-up processes • Bounce handling, feedback loops • Spam filter avoidance and blacklist prevention – Optional: Use of multiple sender domains/IPs for load balancing Dashboard & Monitoring I require a web-based dashboard with the...

...cost and effort. Text generated by FL: I have a fresh Linux server ready to become our new dedicated mail host. I need you to install and harden a custom IMAP / SMTP stack, establish secure TLS connections, set up spam-/virus-filtering, and then migrate every mailbox, alias and folder from the current server with zero data loss or noticeable downtime for users. Customisation is important: Postfix-Dovecot is my first thought, but I’m open to Exim or Sendmail if you can justify the choice and keep management straightforward. Whichever route you pick, please document all configs so I can maintain the system later. Deliverables • Fully functional Linux mail server running chosen IMAP / SMTP software • All user data, folders and aliases copied from the old h...

I have a fresh Ubuntu server that needs to be production-ready. Here’s what I’m looking for: • Install & configure the core stack – whether that ends up being Apache or Nginx for the web layer, MySQL/PostgreSQL for the database, or Postfix/Exim for email, I want clean, reproducible installs with sensible defaults. • Lock the machine down: set up a firewall (UFW or iptables), issue and force SSL/TLS certificates (Let’s Encrypt is fine), and create granular user-access controls with key-based authentication and sudo rules. • Optimise and monitor performance: tune kernel parameters, configure caching where appropriate, and deploy lightweight monitoring (e.g., Netdata, Prometheus node exporter) so I can keep an eye on CPU, RA...

Server Configuration & Security Hardening Objective: Deploy a secure mail server environment with proper authentication, reputation safeguards, and inbound spam filtering to ensure outgoing emails are trusted and incoming spam/malware is blocked. Scope of Work 1. Outgoing Email Configuration – Deliverability & Reputation Install and configure a Mail Transfer Agent (MTA) (e.g., Postfix, Exim). Set up and validate: SPF (Sender Policy Framework) DKIM (DomainKeys Identified Mail) DMARC (Domain-based Message Authentication, Reporting, and Conformance) Configure rDNS (reverse DNS) for the server IP. Implement HELO/EHLO hostname matching. Enable rate limiting and outbound spam protection (e.g., Postscreen, RBL checks). Set proper envelope sender policies and bounce ...

Check and where needed update the configuration of an existing Postfix mail server. Server uses Postfix, RSPAMD, dovecote, opendkim. It runs on a FreeBSD server. Config via cli,

I need a full-stack developer (Laravel or WordPress) with Docker and Linux server experience. The project is – “Tu espacio en red”, a subscription-based platform that gives users: A Nextcloud account (different disk quotas, apps, and permissions by plan). A Mail account on our own mail stack (Postfix + Dovecot + Rspamd + OpenDKIM + OpenDMARC + Roundcube). Everything hosted in one Docker environment on a single dedicated server. The base server is ready — I just need the full system working, including design and branding customization. Main tasks Platform (Laravel or WordPress) User registration & login system. Admin dashboard to create/edit plans/packages (disk quota, mail quota, Nextcloud apps). Subscription system (Stripe or PayPal). Automatic provisio...

I need a complete, production-ready mail system installed in a physically secure datacenter environment. The core requirement is end-to-end delivery over SSL/TLS so every connection—IMAP/POP, SMTP submission, and server-to-server relay—remains encrypted by default. I haven’t locked myself into a specific stack, so feel free to propose Postfix with Dovecot, or any other combination you trust; stability, security, and maintainability are what matter most. • Mail services – Install and configure the chosen SMTP and IMAP/POP services. – Generate or obtain trusted SSL certificates (Let’s Encrypt is fine) and enforce TLS-only connections. • DNS & delivery hygiene – Create the required MX and A records. – Advis...

...application serving approximately 50,000 users. The system will be hosted on a single Azure Virtual Machine, using Node.js (Express) and PostgreSQL. The API handles a workload that is over 99% read-heavy with lightweight queries and minimal writes, leveraging client-side caching to minimize server load. Email alerts will be configured using a server-side email solution (e.g., a local SMTP server like Postfix) provided on the Azure VM. The Chrome Extension enables partner developers to mouse-over, highlight, and select DOM elements to generate selectors dynamically. The same developer will build both components to ensure seamless integration and testing. The winning bidder will receive detailed specifications, including PostgreSQL schemas, tables, and example data. Scope of Work ...

I need a reliable SMTP server configured from scratch so my custom-built HTML/CSS website can send time-sensitive transactional emails—order confirmations, password resets, notifications—without delay or spam issues. Here is what I expect: • Provision and harden the SMTP service (Postfix, Exim or another Linux-friendly MTA) on my VPS or cloud instance, enabling TLS, rate-limiting, and authentication. • Configure DNS records—SPF, DKIM and DMARC—for the primary sending domain. • Set up SMTP AUTH so my web application can connect securely from server-side scripts. • Run deliverability tests (Mail-Tester or similar) and share the results so I can see we’re landing in the inbox. • Supply concise setup documentation: host...

I manage several websites on a dedicated server running Plesk, and right now outgoing mail is simply not being delivered. I already relay through a smart host, yet messages either vanish or end up flagged as spam. I need the full mail stack—Postfix/Qmail, SMTP authentication, SPF, DKIM, DMARC, reverse DNS and relay settings—reviewed and corrected so every domain on the server lands reliably in recipients’ inboxes. Here’s what I expect: first, a quick audit of the current configuration and DNS. Next, the necessary changes to Plesk and the smart-host settings to eliminate delivery issues. Finally, clear documentation of what was changed so I can maintain it. Acceptance criteria • All domains pass SPF, DKIM and DMARC checks on MXToolbox (or similar) &...

I have a clean, permission-based list that needs to go out at a steady volume of up to 10,000 messages per day, and I do...server and IPs • All core authentication (SPF, DKIM, ideally DMARC) already in place so major providers trust the traffic • Warm-up guidance if new IPs are involved, plus ongoing reputation monitoring • Automatic handling of bounces, complaints and unsubscribes • Clear performance reporting after each send—delivery rate, open rate, click-through, and any issues you notice Experience with Postfix, PowerMTA, MailWizz, or similar MTA-level tooling is a plus, provided the environment is stable and compliant with CAN-SPAM/GDPR standards. The collaboration starts with a single day’s send; if the metrics are strong, we’ll...

I want to spin up my own SMTP server—nothing outsourced—so I can control deliverability, logs, and security end-to-end. The instance must require authentication before mail is accepted. I’m open on the exact method (username-password, OAuth, or an IP-based rule set); propose what you think fits best for a secure yet straightfo...DMARC) so messages land in inboxes instead of spam. Once everything is live, please send test messages from and to multiple providers (Gmail, Outlook, Yahoo) and supply the logs showing successful delivery. Finally, give me concise step-by-step notes so I can manage users and rotate credentials on my own later. If this is in your wheelhouse, let me know which MTA and associated tools you’d use—Postfix, Exim, or something else&m...