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

(Created page with "This is a how-to reject nested from addresses.<br> Example<br> <code><pre> From:<rick@zimbra.comjohn@zimbra.com> OR From:<"rick@zimbra.com john"@zimbra.com>" From:"<"rick@...")
 
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<code><pre>
 
<code><pre>
 
zmmtactl restart
 
zmmtactl restart
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</pre></code>
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 +
Check it.
 +
<code><pre>
 +
postconf | grep ^smtpd_sender_restrictions
 +
 +
You should see something similar to to this...
 +
 +
smtpd_sender_restrictions = reject_authenticated_sender_login_mismatch, 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, check_sender_access pcre:/opt/zimbra/conf/sender_pcre
 
</pre></code>
 
</pre></code>

Revision as of 01:10, 28 November 2018

This is a how-to reject nested from addresses.

Example

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

OR

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

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

Add the following to the bottom 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 = reject_authenticated_sender_login_mismatch, 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, check_sender_access pcre:/opt/zimbra/conf/sender_pcre
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