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When you send an e-mail activity by using the Microsoft CRM Sales for Outlook (the Outlook client) or the Microsoft CRM Web client, you may receive a non-delivery report (NDR) that is similar to the following: #5.5.0 SMTP;500 5.5.0 Syntax error - line too long


This problem occurs if the e-mail activity that you sent has more than 999 continuous characters in the e-mail activity message body.

Some e-mail systems use an unsolicited commercial e-mail (UCE) filter that may be configured to reject e-mail activities that have more than 999 consecutive characters in the body of the e-mail message. A Microsoft CRM e-mail activity may be rejected by the UCE filter in the recipient's organization if either of the following conditions is true:

  • The message body contains more than 999 consecutive characters.

  • The message contains no line feeds or carriage returns.

Note Unsolicited commercial e-mail is also known as spam.


Microsoft CRM has a fix for this problem that is part of a cumulative update. The cumulative update information is described in the following Microsoft Knowledge Base article:

904435 Update Rollup 2 is available for Microsoft CRM 1.2

More Information

For more information about hotfix 892949 and hotfix 841284, click the following article number to view the article in the Microsoft Knowledge Base:

841284 Microsoft Business Solutions CRM version 1.2 hotfix for 830360 and 839156

For more information about the terminology that is used to describe Microsoft software updates, click the following article numbers to view the articles in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

887283 Microsoft Business Solutions CRM software hotfix and update package naming standards

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