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ROOT ‹ Unix Networked Services & Applications ‹ Mail servers and clients ‹ Postfix: Hide MUA (x-mailer|user-agent) information from mail header

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Postfix: Hide MUA (x-mailer|user-agent) information from mail header

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mandrei99
Post  Post subject: Postfix: Hide MUA (x-mailer|user-agent) information from mail header  |  Posted: Mon Jan 26, 2015 6:40 pm

Joined: Tue Aug 04, 2009 9:16 am
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Postfix: Hide MUA (x-mailer|user-agent) information from mail header

Based on previous post Postfix MTA - How to mask real ip in mail headers, postfix can also remove other headers that reveal the mail user agent information, such sh "X-Mailer" or "User-Agent".

To remove these headers, open postfix "headers_check" configuration file and add below two lines:
Code:
/^X-Mailer:.*/ IGNORE
/^User-Agent:.*/ IGNORE
And reboot postfix.





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