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To setup open dkim a couple of steps have to be made to install and configure the service and get it running. The example domain is noordwijk.nl, change it to yours. | To setup open dkim a couple of steps have to be made to install and configure the service and get it running. The example domain is noordwijk.nl, change it to yours.<br> | ||
<code> | |||
mkdir /etc/dkimkeys | mkdir /etc/dkimkeys | ||
chown opendkim.opendkim /etc/dkimkeys | chown opendkim.opendkim /etc/dkimkeys | ||
</code> | |||
<br> | |||
<code> | <code> | ||
sudo -u opendkim opendkim-genkey -D /etc/dkimkeys -d noordwijk.nl -s 2020 | sudo -u opendkim opendkim-genkey -D /etc/dkimkeys -d noordwijk.nl -s 2020 | ||
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KeyFile /etc/dkimkeys/2020.private | KeyFile /etc/dkimkeys/2020.private | ||
Socket inet:8891@localhost | Socket inet:8891@localhost | ||
</code> | |||
<code> | |||
<br> | |||
Make a backup of the original config | |||
<br> | |||
<code> | |||
cp -rp /etc/postfix/main.cf /etc/postfix/main.cf_bak | cp -rp /etc/postfix/main.cf /etc/postfix/main.cf_bak | ||
</code> | |||
<br> | |||
Add the new config parts | |||
<code> | |||
vi /etc/postfix/main.cf | vi /etc/postfix/main.cf | ||
smtpd_milters = inet:localhost:8891 | smtpd_milters = inet:localhost:8891 | ||
non_smtpd_milters = $smtpd_milters | non_smtpd_milters = $smtpd_milters | ||
</code> | |||
<code> | |||
systemctl restart opendkim | systemctl restart opendkim | ||
systemctl restart postfix | |||
</code> | </code> | ||
Revision as of 12:51, 16 April 2020
To setup open dkim a couple of steps have to be made to install and configure the service and get it running. The example domain is noordwijk.nl, change it to yours.
mkdir /etc/dkimkeys
chown opendkim.opendkim /etc/dkimkeys
sudo -u opendkim opendkim-genkey -D /etc/dkimkeys -d noordwijk.nl -s 2020
Domain noordwijk.nl
Selector 2020
KeyFile /etc/dkimkeys/2020.private
Socket inet:8891@localhost
Make a backup of the original config
cp -rp /etc/postfix/main.cf /etc/postfix/main.cf_bak
Add the new config parts
vi /etc/postfix/main.cf
smtpd_milters = inet:localhost:8891
non_smtpd_milters = $smtpd_milters
systemctl restart opendkim
systemctl restart postfix
Following text record needs to go into the DNS Zonefile
user@host:~# cat /etc/dkimkeys/2020.txt
2020._domainkey IN TXT ( "v=DKIM1; k=rsa; "p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCqcS4IGfYnGeToHq7lziTCithEA5esxonnQjtp8hbVSGNDXeAAXQvdzg34QkpS/GCtsRa28XmnTw451dUDei/IE3CUrVet4SaYurERKzpwoBHyAMGCQgqgUzhGXpAOcL50XHXTtjZ9h1rdwyfTlg9YNosXrEXyF7Rt5YJOa/n3UQIDAQAB" ) ; ----- DKIM key 2020 for noordwijk.nl