Difference between revisions of "DKIM How To"

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Tools:
 
Tools:
 +
*[https://help.ubuntu.com/community/Postfix/DKIM Postfix/DKIM Ubuntu/Debian Guide]
 
*[https://dkimcore.org/tools/ Key Generator]
 
*[https://dkimcore.org/tools/ Key Generator]
 
*[http://dkimvalidator.com/ Online Key Validator]
 
*[http://dkimvalidator.com/ Online Key Validator]

Revision as of 07:40, 8 May 2018

DKIM add new key:

  • create keys and put them into /etc/opendkim/keys/domains.com/keys
  • add domain to trusted.hosts
  • add domain to signing.table
  • add domain to key.table
systemctl restart opendkim

Generate keys:

opendkim-genkey -b 2048 -h rsa-sha256 -r -s mail -d domain.com -v

Test Keys:

opendkim-testkey -d domain.com -s mail -vvv

Need permissions:

chown -R opendkim:opendkim /etc/opendkim/
chmod 700 /etc/opendkim/keys/

Debugging:

grep -r milter /var/log/syslog

Notes:

If it keys do not pass on reboot, do the following:

systemctl restart opendkim
systemctl restart postfix

Tools: