How to ignore all outgoing mail in MailScanner

Charles Lacroix clacroix at
Thu Jan 3 16:49:17 GMT 2008

Ronny T. Lampert a écrit :
> Hi all,
> after endless searching with Google I did not find any solution to the 
> following problem (well, I found 
> - but is this still the best way to go?)
> All outgoing mails (= mails received from internal, trusted servers) 
> MUST NOT be scanned by MailScanner.
> ATM I'm using the postfix setup with header_checks enabled, but this 
> (of course) causes ALL MAIL to be scanned by MailScanner.
> postfix has this nice "permit_mynetworks" keyword to bypass all checks 
> for internal servers.
> 1) Is there a clean way to NOT PASS any mails from a list of relays to 
> MailScanner at all (by postfix)?
> -OR-
> 2) Is there a similar keyword for Mailscanner so it ignores those 
> mails completely?
> Has anybody a suggestion how to implement that the most clean way?
> It's not just a couple of IPs...
> Cheers,
> Ronny

just like this, i would try to experiment with a ruleset on this 
paticular option:

# If this is set to yes, then email messages passing through MailScanner
# will be processed and checked, and all the other options in this file
# will be used to control what checks are made on the message.
# If this is set to no, then email messages will NOT be processed or
# checked *at all*, and so any viruses or other problems will be ignored.
# The purpose of this option is to set it to be a ruleset, so that you
# can skip all scanning of mail destined for some of your users/customers
# and still scan all the rest.
# A sample ruleset would look like this:
#   To:  no
#   From: no
#   FromOrTo: default           yes
# That will scan all mail except mail to and mail from
# To set this up, put the 3 lines above into a file
# called /etc/MailScanner/rules/scan.messages.rules and set the next line to
# Scan Messages = %rules-dir%/scan.messages.rules
# This can also be the filename of a ruleset (as illustrated above).
Scan Messages = yes

I really think there is something you can do with this option.
On the other hand, you can also whitelist your servers so they don't get
tagged as spam.


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