On Thu, 27 Feb 2020 16:56:55 +0100 Herbert J. Skuhra herb...@gojira.at said
On Thu, Feb 27, 2020 at 10:31:59AM +0100, Kurt Jaeger wrote:
> Hi!
>
> > The problem has been resolved but I still sometimes see "connect from
> > unknown[2610:1c1:1:606c::19:2]" in the maillog (today: 6 of 131
> >
On Thu, Feb 27, 2020 at 10:31:59AM +0100, Kurt Jaeger wrote:
> Hi!
>
> > The problem has been resolved but I still sometimes see "connect from
> > unknown[2610:1c1:1:606c::19:2]" in the maillog (today: 6 of 131
> > connections). Local unbound issue?
>
> That IPv6 has a valid reverse DNS record,
The problem has been resolved but I still sometimes see "connect from
unknown[2610:1c1:1:606c::19:2]" in the maillog (today: 6 of 131
connections). Local unbound issue?
That IPv6 has a valid reverse DNS record, so please try to investigate.
Looks like an intermittent problem. Tried the
Hi!
> The problem has been resolved but I still sometimes see "connect from
> unknown[2610:1c1:1:606c::19:2]" in the maillog (today: 6 of 131
> connections). Local unbound issue?
That IPv6 has a valid reverse DNS record, so please try to investigate.
Something like the output from:
dig +trace
On Mon, 17 Feb 2020 17:45:46 +0100, Michael Butler wrote:
>
> Seems there's an issue with freebsd.org's reverse DNS resulting in
> refused email, e.g.
>
> Feb 17 08:58:54 mail postfix/smtpd[41811]: NOQUEUE: reject: RCPT from
> unknown[2610:1c1:1:606c::19:2]: 550 5.7.25 Client host rejected:
Seems there's an issue with freebsd.org's reverse DNS resulting in
refused email, e.g.
Feb 17 08:58:54 mail postfix/smtpd[41811]: NOQUEUE: reject: RCPT from
unknown[2610:1c1:1:606c::19:2]: 550 5.7.25 Client host rejected: cannot
find your hostname, [2610:1c1:1:606c::19:2];
from= to=
proto=ESMTP
