On Fri, Aug 07, 2026, Jim Seymour via Postfix-users wrote:
> On Fri, 7 Aug 2026 16:46:51 +0100
> Joe via Postfix-users <[email protected]> wrote:
> > My concern is that I was sending to Gmail recipients perfectly well
> > through the old server using exim4, then about four days later when
> > I got Postfix running on new hardware using an equally self-signed
> > certificate, it wasn't working.
> Unless every client (or service) that connects to your server has
Maybe I misunderstand something here: Joe writes about sending,
but you write about receiving.
Those two things are rather different, esp. when it comes to certs
nowadays.
> And, IMO, there's really no longer much justification for using
> themânot with Let's Encrypt certs available.
Let's Encrypt certs are now useless as client certs, right?
X509v3 Extended Key Usage:
TLS Web Server Authentication
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