Difference between revisions of "King0770-Notes-Rejecting-Nested-From-Addresses"

Line 7: Line 7:
 
OR
 
OR
  
From:<"rick@zimbra.com john"@zimbra.com>"
+
From:<"rick@zimbra.comjohn"@zimbra.com>"
  
 
From:"<"rick@zimbra.com.johm"@zimbra.com>"
 
From:"<"rick@zimbra.com.johm"@zimbra.com>"

Revision as of 17:49, 30 November 2018

This is a how-to reject nested from addresses.

Example

From:<rick@zimbra.comjohn@zimbra.com>

OR

From:<"rick@zimbra.comjohn"@zimbra.com>"

From:"<"rick@zimbra.com.johm"@zimbra.com>"

Add the following to the top of the /opt/zimbra/conf/zmconfigd/smtpd_sender_restrictions.cf file

check_sender_access pcre:/opt/zimbra/conf/sender_pcre

Next, create the /opt/zimbra/conf/sender_pcre file with the following.

/@.*@/       reject

Restart MTA

zmmtactl restart

Check it.

postconf | grep ^smtpd_sender_restrictions

You should see something similar to to this...

smtpd_sender_restrictions = check_sender_access pcre:/opt/zimbra/conf/sender_pcre, check_sender_access regexp:/opt/zimbra/common/conf/tag_as_originating.re, permit_mynetworks, permit_sasl_authenticated, permit_tls_clientcerts, check_sender_access regexp:/opt/zimbra/common/conf/tag_as_foreign.re
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