I use the opensmtpd filter described here, it signs outgoing email such that Gmail will accept it: https://slackbuilds.org/repository/15.0/network/opensmtpd-filter-dkimsign/
On 30/1/2026, "Sagar Acharya" <[email protected]> wrote: >What is the best way to setup DKIM for OpenSMTPD? GMail requires all mail >domains to have DKIM. > >Is it necessary in your view? >=============== >Thanking you >Sagar Acharya >https://whitelist.co.in >
