How To Block Email From and Return-Path did not Match
Open /opt/zimbra/conf/salocal.cf.in. Please add these line at the bottom
score HEADER_FROM_DIFFERENT_DOMAINS 10.0
header __FROM_DOMAIN From =~ /\@example.com/i
header __RETURN_PATH Return-Path =~ /\@example.com/i
meta SPAM_DOMAIN !(__RETURN_PATH) && __FROM_DOMAIN
describe SPAM_DOMAIN From and return-path did not match our domain
score SPAM_DOMAIN 10.0
Note: Adjust example.com with your domain.
The configuration above will give a score of 10.0 if the domain and return path do not match. And will give a score of 10.0 if the header is from a different domain. You can give another value like 20.0 to discard the email.
Make sure your antispam service has been enabled
zmprov ms `zmhostname` +zimbraServiceEnabled antispam
zmcontrol restart
score HEADER_FROM_DIFFERENT_DOMAINS 10.0
header __FROM_DOMAIN From =~ /\@example.com/i
header __RETURN_PATH Return-Path =~ /\@example.com/i
meta SPAM_DOMAIN !(__RETURN_PATH) && __FROM_DOMAIN
describe SPAM_DOMAIN From and return-path did not match our domain
score SPAM_DOMAIN 10.0
Note: Adjust example.com with your domain.
The configuration above will give a score of 10.0 if the domain and return path do not match. And will give a score of 10.0 if the header is from a different domain. You can give another value like 20.0 to discard the email.
Make sure your antispam service has been enabled
zmprov ms `zmhostname` +zimbraServiceEnabled antispam
zmcontrol restart
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