On 5/26/2010 10:13 AM, Wilberth Pérez wrote:
Hi.

I wish to rewrite or disable "userid X" (Received: by mail.example.com
(Postfix, from userid 100)), for not show on postfix headers.

is possible to make these settings in main.cf file configuration of postfix?

Use smtp_header_checks REPLACE action to rewrite the header to something acceptable.
http://www.postfix.org/postconf.5.html#smtp_header_checks
http://www.postfix.org/header_checks.5.html

  -- Noel Jones

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