On Sun, Jan 08, 2023 at 09:51:40AM +0400, Sam wrote: > Hi Eero. I'm using the default settings in postfix. In fact, you can > look in my settings you'll find `smtpd_tls_eecdh_grade = ultra`. That's > the only DH related thing AFAIK.
Unless your Postfix version is very old, that setting is unwise and
either ignored as of Postfix 3.6 or deprecated. The default (much
better) is "auto". See the documentation:
https://www.postfix.org/postconf.5.html#smtpd_tls_eecdh_grade
--
Viktor.
