Control WebPanel Wiki » Dkim Double Signature http://wiki.centos-webpanel.com CentOS WebPanel Wiki Wed, 12 Feb 2025 20:38:16 +0000 en-US hourly 1 http://wordpress.org/?v=4.1.1 Dkim double signature http://wiki.centos-webpanel.com/dkim-double-signature http://wiki.centos-webpanel.com/dkim-double-signature#comments Sun, 28 Nov 2021 18:52:24 +0000 http://wiki.centos-webpanel.com/?p=1607 This issue can happen when using amavis.
In case you have a double email signature you can edit your postfix config.

However, mostly double dkim is NOT an issue, you need to be sure that your dkim signature is added on the DNS servers (if you are using an external DNS).

File: /etc/postfix/master.cf

smtp	  inet  n	-	n	-	-	smtpd
  -o content_filter=smtp-amavis:127.0.0.1:10024
  -o receive_override_options=no_address_mappings

After no_address_mappings add no_milters , example:

smtp	  inet  n	-	n	-	-	smtpd
  -o content_filter=smtp-amavis:127.0.0.1:10024
  -o receive_override_options=no_address_mappings,no_milters

After changes restart postfix:

service postfix restart
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