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I am using postfix-pcre on debian linux.

When I run postmap /etc/postfix/smtp_header_checks.pcre and postmap pcre:/etc/postfix/smtp_header_checks.pcre, I get the following error:

postmap: warning: smtp_header_checks.pcre, line 1: record is in "key: value" 
format; is this an alias file?

What is wrong? I have this in /etc/postfix/smtp_header_checks.pcre:

# Remove sender's IP address information
/^Received: .*/ IGNORE
/^X-Originating-IP:/ IGNORE
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2 Answers 2

up vote 0 down vote accepted

You don't need to run postmap on postfix's pcre files.

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You cannot run postmap on PCRE, CIDR, REGEX, or TEXTMAP files.

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Correction: you can run postmap on a pcre file; it even creates a .db after doing so. However running postmap on a pcre file results in the errors shown in the question. –  Mike Pennington Aug 2 '12 at 16:08
    
Since the context is "a working postfix installation", no, you cannot. –  adaptr Aug 3 '12 at 12:33
    
Help me understand what goes wrong if I did, because postfix was still working fine when I did it –  Mike Pennington Aug 3 '12 at 12:43

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