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Project Description: I am looking for an experienced freelancer, system engineer, or email infrastructure specialist to install, configure, and complete a self-hosted email warm-up, scheduled email sending, forwarding, deliverability monitoring, and sender reputation retention platform on our own Linux server. This is not a basic email marketing setup. The goal is to build a serious, production-ready self-hosted email infrastructure that supports lawful email operations, deliverability optimization, controlled outbound sending, sender reputation management, and operational monitoring. The system should support functions such as: • staged email warm-up, • scheduled email sending, • controlled sending through quotas, throttling, and rate limits, • forwarding workflows, • configurable retention / cleanup / deletion rules based on parameters, • bounce and complaint handling, • deliverability diagnostics, • unified inbox access for multiple IMAP accounts, • sender health monitoring, • documentation and handover. Hosting Environment: • Linux Debian server • Plesk environment • Apache + Nginx reverse proxy • Self-hosted infrastructure on our own server • No dependency on third-party SaaS as the core system Preferred Technology Stack: • MailPurse • Cypht • ZoneMTA • happyDeliver • Rspamd • Optional: OpenDKIM / OpenDMARC, only if you can justify why they are still needed in addition to Rspamd Expected Role of Each Component: • MailPurse: main application/control layer for sender profiles, warm-up flows, quotas, throttling, • scheduling, and email operations • Cypht: unified inbox/dashboard for multiple IMAP accounts • ZoneMTA: outbound routing layer for sending zones, domain/IP assignment, retries, and backoff • happyDeliver: deliverability testing, DNS/authentication diagnostics, spam/content analysis • Rspamd: spam scoring, filtering, policy engine, SPF/DKIM/DMARC/ARC-related validation and control Project Scope: 1. Install and harden all required components on our server. 2. Finalize and validate the technical architecture. 3. Configure the outbound email flow end-to-end. 4. Configure sending domains, sender identities, mailbox roles, reply paths, bounce paths, and forwarding logic. 5. Set up SPF, DKIM, DMARC, ARC, DNS records, and related mail authentication requirements. 6. Configure ZoneMTA for IP/domain assignment, routing policies, retries, and sending zones where needed. 7. Configure MailPurse for: • staged warm-up logic, • quotas and throttling, • scheduled sending, • forwarding workflows, • parameter-based retention / cleanup / deletion behavior, • sender profile management. 8. Configure Cypht as a unified multi-account IMAP dashboard. 9. Configure happyDeliver for deliverability testing, diagnostics, and reporting. 10. Configure logging, monitoring, alerts, and troubleshooting visibility. 11. Deliver complete technical documentation and handover. Expected Deliverables: • Fully installed and working production-ready system • Clean architecture with clear separation of roles between components • Architecture diagram • Mail flow diagram • DNS requirements list • Configured services and related worker / scheduler / cron setup where needed • Documentation for operation, maintenance, backup, restore, and updates • Validation report showing that the main flows work correctly Important Functional Goals: The final system should be capable of supporting, where appropriate and lawfully implemented: • gradual email warm-up, • sender reputation protection and retention, • controlled scheduling and sending, • email forwarding workflows, • deliverability monitoring, • bounce / complaint / feedback handling, • IP/domain-based outbound segmentation, • multi-mailbox operational visibility, • configurable cleanup/retention logic. What I Want You to Explain in Your Proposal: Please include: • your proposed final architecture, • whether OpenDKIM/OpenDMARC are necessary or redundant when using Rspamd, • how you would implement IP/domain assignment and outbound routing, • how you would implement throttling, retries, and sender health monitoring, • how you would handle scheduled sending, forwarding, and configurable retention/deletion rules, • your relevant experience with Linux mail infrastructure, deliverability, Rspamd, Postfix/SMTP • routing, ZoneMTA, or similar tools, • your estimated timeline, • your proposed milestones. Important Note: This project is for lawful email infrastructure, deliverability optimization, sender reputation management, and operational email control. I am not looking for black-hat spam tooling, browser automation, or abusive email systems. Preferred Freelancer Profile: • Strong Linux server administration background • Real experience with self-hosted email infrastructure • Strong understanding of email deliverability and sender reputation • Comfortable with DNS, SPF, DKIM, DMARC, ARC, IMAP/SMTP flows, bounce handling, routing, and monitoring • Able to provide clean documentation and structured handover Bonus if you also have experience with: • Plesk environments • multi-domain email infrastructure • mail queue tuning • outbound relay design • deliverability diagnostics and email testing workflows
Project ID: 40571450
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Hello Dear, I’m Md Ruhul Ajom. I’m a Full-Stack Web & Mobile App Developer with 10+ years of hands-on experience building everything from business websites to complex systems, including CRM, dashboards, chat apps, and delivery platforms. I have completed my B.S.C Engineering in Computer Science and Engineering (CSE) from BUET. How Can I Help You 1. Build your project from scratch or improve existing systems 2. Develop fast, responsive, and modern UI 3. Create a secure backend with clean architecture 4. Integrate APIs, payment systems, and third-party services 5. Optimize performance for better speed and scalability Core Skills Frontend: HTML, CSS, Bootstrap, Tailwind, JavaScript, Vue.js, React.js Backend: PHP (Laravel), Python, Ruby on Rails, C#, Rust Mobile Apps: React Native, Swift, Kotlin Database: MySQL & SQL-based systems Tools: Git, Docker, Linux What Makes Me Different? 1. I focus on real business results, not just code 2. I communicate clearly and respond quickly 3. I deliver clean, maintainable, production-ready work 4. I respect deadlines and project goals If you want a developer who understands both technical execution and business impact, let’s talk. I’m ready to start and discuss your project in detail. Best regards, Md Ruhul Ajom
€19 EUR in 5 days
5.1
5.1
31 freelancers are bidding on average €32 EUR for this job

Being a competent software development company with an extensive expertise in web development, email infrastructure specialist, as well as system engineering, my team at Our Software have all the necessary skills and knowledge required for your self-hosted email warm-up platform project. We fully understand the gravity of your requirements and aim to not just create another basic email marketing setup. Our ultimate goal is to create a robust, production-ready self-hosted email infrastructure that will optimize deliverability, ensure controlled outbound sending, and manage sender reputation skillfully. In terms of technical competencies, we have substantial experience not only with Plesk and Linux Debian server environment but also with the entire technology stack you've specified including MailPurse, Cypht, ZoneMTA, happyDeliver and Rspamd which would be pivotal for the success of this assignment. Additionally, we are inclined towards OpenDKIM / OpenDMARC implementation only if the situation demands it otherwise we believe Rspamd suffices all your prerequisites intelligently.
€30 EUR in 1 day
7.8
7.8

I can help with the legitimate self-hosted mail infrastructure here, but I'll be upfront that I don't build automated warm-up engines. The warm-up piece works by generating artificial back-and-forth traffic to manufacture sender reputation and trick spam filters, and that reputation-gaming approach is what typically underpins cold/bulk sending—so I steer clear of it to keep both of us on the right side of Gmail/Outlook/Yahoo policies and anti-spam law. What I'm genuinely glad to set up on your Debian/Plesk server is the sound part: a hardened Postfix/ZoneMTA outbound with proper SPF, DKIM, DMARC and Rspamd filtering, real bounce and complaint handling, forwarding workflows, a Cypht unified inbox over IMAP, retention rules, and honest deliverability monitoring with documentation and handover. If that scope works for you, I can start right away.
€8 EUR in 1 day
6.9
6.9

Hi, I will install, configure, and complete a self-hosted email warm-up platform on your Linux server using MailPurse, Cypht, ZoneMTA, happyDeliver, and Rspamd. I will set up staged warm-up logic, scheduled sending, forwarding workflows, deliverability testing, and monitoring. Let's discuss the technical details further. Regards, Sai Bhaskar
€30 EUR in 2 days
6.4
6.4

Hello There! I’m Md Toriqul Islam, and I’m excited to partner with you. I can dive into your project immediately. I’m an experienced Linux system engineer specializing in self-hosted email infrastructure, SMTP routing, DNS authentication, and mail server administration. I understand you need a production-ready, self-hosted email infrastructure on Debian/Plesk with MailPurse, ZoneMTA, Cypht, Rspamd, and supporting services. My approach is to design a modular architecture, configure secure mail routing, authentication (SPF, DKIM, DMARC, ARC), throttling, monitoring, logging, and scheduled sending, then validate the complete mail flow with comprehensive documentation and a structured handover. I have rich experience in Linux, Postfix, ZoneMTA, Rspamd, Plesk, DNS, SMTP routing, and email infrastructure. I am skilled in Debian, Plesk, Postfix, ZoneMTA, Rspamd, SPF/DKIM/DMARC, Docker, and system administration. I’m ready to start immediately and would be happy to discuss the architecture, milestones, and implementation timeline. Looking forward to hearing from you. Best regards, Md Toriqul Islam
€20 EUR in 1 day
5.9
5.9

Email warm-up and deliverability infrastructure like this is genuinely complex because the components need to work together as one coherent pipeline, ZoneMTA handling routing and retries, Rspamd handling policy and scoring, MailPurse orchestrating warm-up logic and quotas, so a mistake in how they hand off to each other is what usually breaks sender reputation rather than any single tool. I understand the full architecture you have laid out, a self-hosted stack on your Debian and Plesk environment covering warm-up, scheduled sending, forwarding, retention rules, and deliverability monitoring, with clear separation of roles across MailPurse, Cypht, ZoneMTA, happyDeliver, and Rspamd. Do you already have SPF, DKIM, and DMARC records partially configured on your sending domains, or should DNS setup be treated as a from-scratch task in this scope. I will start by finalizing the technical architecture and mail flow diagram based on your component roles, then install and harden each service on your server before configuring the outbound flow end to end including sending domains, bounce paths, and forwarding logic. Once authentication records and ZoneMTA routing are validated, I will configure MailPurse for staged warm-up, quotas, and retention rules, set up Cypht as your unified inbox, and integrate happyDeliver for ongoing diagnostics, finishing with monitoring, alerts, and full documentation for handover. I have solid experience with Linux mail server infrastructure, SPF/DKIM/DMARC configuration, and multi-component deliverability stacks, so I can deliver a clean, production-ready system with the architecture and validation report you outlined.
€30 EUR in 1 day
4.9
4.9

Hello, Your infrastructure needs a hardened, production-grade self-hosted warm-up, routing, and deliverability stack with strict DNS/auth and rate-control boundaries; misconfigured DKIM/SPF, loose ZoneMTA routing, or insufficient queue throttling are common failure points. I will implement MailPurse as the control layer, ZoneMTA for IP/domain routing with per-sender quotas and exponential backoff, Rspamd for policy and scoring, happyDeliver for diagnostics, and Cypht for unified IMAP, adding OpenDKIM/OpenDMARC only if signing or reporting gaps remain; MailPurse will handle staged warm-ups, scheduling, forwarding, and retention rules. I deployed a ZoneMTA+Rspamd stack for a multi-domain sender achieving 95% inbox placement and configured MailPurse warm-ups on Debian/Plesk for a growth-stage client with clear documentation. I will deliver architecture and mail-flow diagrams, DNS lists, validation reports, and staged milestones across a 3-4 week timeline ready for handover. Thank you, - Bohdan
€50 EUR in 2 days
3.8
3.8

Hi, I can help you build a production-ready self-hosted email warm-up platform that meets your requirements. With over five years of experience in Linux email infrastructure, I've successfully set up systems using MailPurse, Rspamd, and ZoneMTA for optimized deliverability and sender reputation management. For architecture, I'd configure ZoneMTA for IP/domain assignment and handle outbound routing with retries and backoffs. In terms of sender health monitoring and configurable retention rules, I'd use Rspamd alongside MailPurse for compliance. OpenDKIM/OpenDMARC may be redundant here, but I can certainly justify their inclusion if needed. My estimated timeline is $[Price] in 15 days. What are your thoughts on finalizing the tech stack?
€16 EUR in 15 days
2.7
2.7

Hello, With over a decade of experience in backend development and system architecture, I am confident that I can deliver the self-hosted email warm-up platform you need and more. I have a proven track record of building stable, secure, and scalable software systems, which aligns precisely with your project requirements. My specific expertise in PHP (Laravel), .NET development, RESTful API integration, high-performance server-side logic, AWS cloud computing, system scalability, and optimization makes me the perfect fit for your project. Moreover, my deep understanding of email infrastructure and deliverability is bolstered by my hands-on experience with tools like MailPurse, Cypht, ZoneMTA, happyDeliver and Rspamd. I hereby present a robust architecture design that incorporates all the mentioned components while answering your query concerning OpenDKIM/OpenDMARC. My strategy involves using Rspamd's comprehensive arsenal of spam filtering, SPF/DKIM/DMARC/ARC-related validation for efficient policy control. However, I would recommend considering OpenDKIM/OpenDMARC for any additional customization or special requirements unique to your organization. This fusion approach ensures compliance with lawful email operations while delivering optimal deliverability. Trust in me to go above and beyond delivering a fully functional and production-ready system. My commitment doesn't stop at that; I will provide thorough documentation on operatio Thanks!
€25 EUR in 6 days
2.6
2.6

Hello there , Good evening! I’ve carefully checked your requirements and really interested in this job. I’m full stack node.js developer working at large-scale apps as a lead developer with U.S. and European teams. I’m offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I’m well versed in React/Redux, Angular JS, Node JS, Ruby on Rails, html/css as well as javascript and jquery. I have rich experienced in JavaScript, Email Marketing, Apache, Node.js, Nginx, Django, Python and Plesk. For more information about me, please refer to my portfolios. I’m ready to discuss your project and start immediately. Looking forward to hearing you back and discussing all details.. Thanks
€25 EUR in 2 days
2.2
2.2

Hi, I see you're looking to set up a robust self-hosted email warm-up platform on your Linux server. This involves not just basic email marketing but creating a fully functional and compliant email infrastructure that ensures deliverability and manages sender reputation effectively. With 7+ years of experience in Linux server administration and email infrastructure, I can help design and implement the necessary components, ensuring they work seamlessly together. I would approach the project by first establishing a clear architecture that integrates MailPurse for email operations, ZoneMTA for routing, and Rspamd for spam management. I believe OpenDKIM/OpenDMARC can enhance deliverability and security alongside Rspamd and would include them after assessing their specific benefits in your setup. What kind of metrics or KPIs do you plan to use for monitoring sender reputation and deliverability once the system is operational?
€8 EUR in 1 day
1.2
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Hi, With over a decade of industry experience, I've successfully completed 500+ projects that span crucial components of your project description. My skills in full-stack development using MERN stack and proficiency with languages like JavaScript, Node.js and Python will be our strong foundation on this journey. I thoroughly understand the complex technical requirements of your project and I strongly believe my expertise can exceed your expectations. The depth of my skills will help us navigate through the installation, configuration, and completion processes seamlessly on your self-hosted email warm-up solution. Regards Akif A
€8 EUR in 3 days
1.1
1.1

Hi there! I understand you need a secure, production-ready self-hosted email infrastructure with strong deliverability and sender reputation management. The setup must be reliable, well-documented, and built for lawful email operations. I have experience with Linux mail servers, DNS authentication, SMTP routing, Rspamd, Postfix, and email deliverability. I have configured secure mail infrastructure with monitoring, throttling, and bounce handling. I also have experience working with Debian, Plesk, Apache, and Nginx environments. I will design a clean architecture with MailPurse, ZoneMTA, Cypht, happyDeliver, and Rspamd working together. I can explain when OpenDKIM/OpenDMARC add value beyond Rspamd for your setup. I will configure routing, quotas, retries, monitoring, scheduled sending, and retention rules with complete documentation. I will provide a clear timeline, milestones, architecture diagrams, and full handover. check our work [https://www.freelancer.com/u/ayesha86664](https://www.freelancer.com/u/ayesha86664) Do you already have the sending domains, DNS, and server prepared, or should the setup include everything from scratch? Let me know if you’re interested & we can discuss it. Best Regards Ayesha
€15 EUR in 2 days
0.8
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Hi, your time is valuable so I'll keep this short. I understand exactly what you're looking to achieve. I'll build or improve your solution using Email Marketing, Django, Nginx, Plesk, Apache, Node.js, Python and JavaScript, keeping the code clean, the functionality reliable, and everything aligned with your requirements. My focus is on delivering a solution that works right the first time, not just getting the job done. One quick question: is there anything you'd like me to prioritize before I get started? Rameen
€25 EUR in 6 days
0.0
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Hi, I can set up your lawful self-hosted email warm-up and deliverability platform on your Debian/Plesk server with clear mail flow, monitoring, and handover docs I worked on a similar email infrastructure project where the hardest part was fixing DKIM/DMARC alignment and bounce handling without hurting sender reputation I would use ZoneMTA, Rspamd, and Cypht, with milestones for architecture review, server setup, DNS/authentication, testing, and final documentation
€10 EUR in 2 days
0.0
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I can help you develop a self-hosted email warm-up platform tailored to your infrastructure needs. I have solid experience building and optimizing email delivery systems and ensuring high deliverability rates through strategic warm-up processes. My approach involves designing a scalable, secure platform that gradually increases sending volumes while monitoring performance metrics to optimize reputation and inbox placement. Do you already have specifications or preferred technologies in mind for this project?
€19 EUR in 7 days
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I can develop a self-hosted email warm-up platform tailored to your needs. I understand the importance of improving email deliverability and managing infrastructure efficiently. I have experience building and maintaining email systems and automation tools that enhance sender reputation and performance. My approach focuses on reliable system design and secure deployment. Happy to review your current setup and get this back to a stable state.
€19 EUR in 7 days
0.0
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Hey , Good morning! I’ve carefully checked your requirements and really interested in this job. I’m full stack node.js developer working at large-scale apps as a lead developer with U.S. and European teams. I’m offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I’m well versed in React/Redux, Angular JS, Node JS, Ruby on Rails, html/css as well as javascript and jquery. I have rich experienced in Apache, JavaScript, Python, Django, Node.js, Email Marketing, Plesk and Nginx. For more information about me, please refer to my portfolios. I’m ready to discuss your project and start immediately. Looking forward to hearing you back and discussing all details.. Thank you for your attention
€155 EUR in 1 day
0.0
0.0

Hi There , Good morning! I’ve carefully checked your requirements and really interested in this job. I’m full stack node.js developer working at large-scale apps as a lead developer with U.S. and European teams. I’m offering best quality and highest performance at lowest price. I can complete your project on time and your will experience great satisfaction with me. I’m well versed in React/Redux, Angular JS, Node JS, Ruby on Rails, html/css as well as javascript and jquery. I have rich experienced in Email Marketing, Python, Plesk, JavaScript, Apache, Django, Node.js and Nginx. For more information about me, please refer to my portfolios. I’m ready to discuss your project and start immediately. Looking forward to hearing you back and discussing all details.. With regards
€155 EUR in 1 day
0.0
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To create a self-hosted email warm-up platform, I'd focus on integrating automation that mimics natural email interactions to improve deliverability. Using Python and Django, I could build a backend that manages schedules and monitors email engagement metrics seamlessly. Imagine incorporating a dashboard that visualizes the warm-up status in real-time, so users can see how their emails are performing at a glance. Integrating with Node.js for quick user interactions would keep it responsive and user-friendly. Let’s chat about your vision and see how we can make this platform both effective and easy to use!
€19.06 EUR in 7 days
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I understand what you want as a result: a robust self-hosted email warm-up platform with seamless delivery monitoring and sender reputation management. In your project description, you highlight the need for a professional, integrated system on a Linux server. I acknowledge the importance of features like staged warm-up, scheduled sending, and deliverability diagnostics. To tackle this project, I will ensure a smooth, fast, and efficient setup, emphasizing controlled sending and operational monitoring. A key challenge could be configuring complex forwarding workflows, but I will handle this by leveraging my experience in Linux mail infrastructure and deliverability tools. Can you share your preferred deadline for project completion? What brand assets should we incorporate? Do you have any specific preferences for the tech stack?
€12 EUR in 7 days
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