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====== Zimbra DKIM Configuration ======

See also **[[https://www.sonoracomm.com/wiki/doku.php?do=search&id=zimbra|other Zimbra pages in this wiki]]**

https://tipstricks.itmatrix.eu/configuring-dkim-authentication-in-zimbra/

http://wiki.zimbra.com/wiki/Configuring_for_DKIM_Signing

http://files.zimbra.com/website/docs/8.5/Zimbra_OS_Admin_Guide_8.5.0R1.pdf

:!: If this is the first DKIM-enabled domain on the Zimbra Server, you need to **reboot the server after configuring the first domain**.

:!: DKIM is configured on a **per-domain** basis.  Change the domain name to your own domain in the following command.

===== Configure the Zimbra Domain =====

<file>
su - zimbra

/opt/zimbra/libexec/zmdkimkeyutil -q -d mydomain.com   #Query DKIM settings for a domain

/opt/zimbra/libexec/zmdkimkeyutil -a -d mydomain.com   #Add DKIM settings for a domain
</file>

<note important>Enter the result as ''TXT'' field in the DNS of domain you are configuring.  For Virtualmin, do a manual edit and paste the results of the above command.</note>

===== Testing DKIM =====

==== Test DKIM Key ====

After configuring DNS, test the DKIM key (**use your own domain name and selector**):

<file>
/opt/zimbra/opendkim/sbin/opendkim-testkey -d mydomain.com -s 0E9F184A-9577-11E1-AD0E-2A2FBBAC6BCB -x /opt/zimbra/conf/opendkim.conf
</file>

:!: A null result indicates the key is correct.

==== Test DKIM ====

http://www.appmaildev.com/en/dkim/

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