Trend Micro - Securing Your Journey to the Cloud Business
Support
Sign In with your
Trend Micro Account
Need Help?
Need More Help?

Create a technical support case if you need further support.

IMSVA changes mail recipients unexpectedly

    • Updated:
    • 24 Nov 2016
    • Product/Version:
    • InterScan Messaging Security Virtual Appliance 8.2
    • InterScan Messaging Security Virtual Appliance 8.5
    • InterScan Messaging Security Virtual Appliance 9.0
    • Platform:
    • N/A N/A
Summary

IMSVA changes some mail recipients unexpectedly, while there are no policy rules configured with the action “change recipient”.

Details
Public

IMSVA uses Postfix as Mail Transfer Agent (MTA) to relay mails. Postfix, by default, rewrites illegal mail addresses on headers for outgoing mails, if the sender IP is $mynetworks. As a result, when a mail’s recipient address in the “To:” header violates RFC 2822, Postfix will rewrite it. The result may not be expected though.

To disable address rewriting on Postfix, do the following:

  1. Use PuTTY or other software to SSH to IMSVA using root account.
  2. Run the following commands:

    postconf -e local_header_rewrite_clients=
    postfix reload

Premium
Internal
Rating:
Category:
Configure; Troubleshoot; SPEC
Solution Id:
1113436
Feedback
Did this article help you?

Thank you for your feedback!

To help us improve the quality of this article, please leave your email here so we can clarify further your feedback, if neccessary:
We will not send you spam or share your email address.

*This form is automated system. General questions, technical, sales, and product-related issues submitted through this form will not be answered.

If you need additional help, you may try to contact the support team. Contact Support

To help us improve the quality of this article, please leave your email here so we can clarify further your feedback, if neccessary:
We will not send you spam or share your email address.

*This form is automated system. General questions, technical, sales, and product-related issues submitted through this form will not be answered.
Related Articles