I need an expert in Microsoft Exchange 2003 to fix some errors.
Also the exchange server rejects some email and also has issues sending email. The problems started after I hired someone to snyc our iphones to our exchange server.
Here is a typical error we get back when we send email to some people outside our network:
[url removed, login to view] #5.5.0 smtp;554 Service unavailable; Client host [[url removed, login to view]] blocked using Barracuda Reputation
Here is another error message
Could not deliver the message in the time limit specified. Please retry or contact your administrator.
<[url removed, login to view] #4.4.7>
Another error message
There was a SMTP communication problem with the recipient's email server. Please contact your system administrator.
<[url removed, login to view] #5.5.0 smtp;550-5.7.1 [[url removed, login to view] 1] Our system has detected an unusual rate of>