One particular domain is getting a rejection message when sending email to my exchange server. There was a SMTP communication problem with the recipient's email server. Please contact your system administrator. <#5.5.0 smtp;554 rejecting banned content> The incoming email is a law firm that has a lengthy email disclosure in their signature. They are sporadically able to send email. We are only having problems with this domain. I'm assuming if the domain gets rid of their email signature and send the email in plain text it should pass through. Are there settings I can adjust on the Exchange server to allow this type of email through? I do have a Barracuda SPAM appliance in place, but I don't think this rejection is what is banning the email.

I think it's the Barracuda.Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."

On Tue, 28 Jun 2011 16:08:28 +0000, lanwanman wrote: >One particular domain is getting a rejection message when sending email to my exchange server. There was a SMTP communication problem with the recipient's email server. Please contact your system administrator. <#5.5.0 smtp;554 rejecting banned content> The incoming email is a law firm that has a lengthy email disclosure in their signature. They are sporadically able to send email. We are only having problems with this domain. I'm assuming if the domain gets rid of their email signature and send the email in plain text it should pass through. Are there settings I can adjust on the Exchange server to allow this type of email through? I do have a Barracuda SPAM appliance in place, but I don't think this rejection is what is banning the email. That's easy enough to discover. Check the SMTP log file on your Exchange server. Do you see the 554 status? If not, then the appliance sent it. --- Rich Matheisen MCSE+I, Exchange MVP --- Rich Matheisen MCSE+I, Exchange MVP

You can see below good post about how to enable SMTP logging to generate log for SMTP activity. Logging SMTP Protocol Activity in Exchange 2010 and Exchange 2007:: http://exchangepedia.com/2007/05/exchange-server-2007-logging-smtp-protocol-activity.htmlAnil MCC 2011,ITIL V3,MCSA 2003,MCTS 2010, My Blog : http://messagingschool.wordpress.com

Hi lanwanman, Personally I agree with Ed, but it is better for you follow Rich’s suggestion to confirm for the issue. If you are using Exchange 2003, here are some related documents for you to configure SMTP logging: How to enable SMTP protocol logging in Exchange 2000 Server and in Exchange Server 2003 http://support.microsoft.com/kb/265139 Logging the SMTP Service http://www.msexchange.org/tutorials/Logging_the_SMTP_Service.html Thanks, Evan Liu TechNet Subscriber Support in forum If you have any feedback on our support, please contact tngfb@microsoft.com Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Hi lanwanman, Any updates on this issue? Thanks, Evan Liu TechNet Subscriber Support in forum If you have any feedback on our support, please contact tngfb@microsoft.com Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

I had this issue - it was the Barracuda Email filter that was blocking the incoming email. First, go to the Basic tab and then choose 'Message Log' - then check the log for the blocked message in the usual way (I just entered the sender's email address). This should show up any blocked messages and the reason for being blocked. It should also show the offending word or word pattern, in brackets. Then go to the Block/Accept tab and then choose 'Content Filtering' and look for the word or pattern in the main 'Content Filters' section which lists word patterns and actions to be taken when triggered.. Once you've found it, simply modify the settings for Inbound/Outbound and Header/Subject/Body accordingly, then save changes! Good luck :-) Dave