On Fri, Dec 12, 2025 at 10:21:02AM -0500, Bill Cole via Postfix-users wrote:
> > Dec 7 20:10:45 smtp2 postfix/smtpd[29026]: warning: TLS library
> > problem: error:14094412:SSL routines:ssl3_read_bytes:sslv3 alert bad
> > certificate:../ssl/record/rec_layer_s3.c:1544:SSL alert number 42:
> >
> This one is interesting because it is explicit about the problem. It does
> not like something about your certificate. which could be one or more of:
But since, with unathenticated opportunistic TLS in SMTP there's not
just reason to expect any sort of "valid" certificate, the particular
client is merely stupidly shoorting itself in the foot. Just let it
do that. Not the OP's problem.
--
Viktor. 🇺🇦 Слава Україні!
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