Am 24.05.2024 um 17:17:45 Uhr schrieb to...@tuxteam.de: > On Fri, May 24, 2024 at 04:49:18PM +0200, Marco Moock wrote: > > [...] > > > If you operate mail servers, you must have a FQDN. .lan can't be > > used for the global DNS stuff, so set a proper FQDN that belongs to > > you. > > I think this is wrong in that sweeping generality.
In the case it should communicate with other MTAs in the internet, this will be true because many of them require a resolvable (also reverse) FQDN in HELO/EHLO that matches the IPv4/IPv6 addresses of the server. -- Gruß Marco Send unsolicited bulk mail to 1716563865mu...@cartoonies.org