This is probably not the right place to be asking this as it is not directly
Postfix related, but I don't know a better group to ask. For years I have sent
text messages and just let the lines run on. Only inserting a \n for the start
of a
new paragraph. I never exceed the 988 line length
The isi.edu DNS nameservers were apparently being DoSed today, and
reverse and forward lookups (from my MX host) were failing. I was
however surprised to then see:
postfix/smtpd[2530673]: NOQUEUE: reject: RCPT from unknown[128.9.29.254]:
550 5.7.1 Client host rejected: cannot find
Viktor Dukhovni via Postfix-users:
> On Mon, Apr 22, 2024 at 12:21:01AM -0400, 785 243 via Postfix-users wrote:
>
> > Recently i'm seeing a few messages deferred with status=deferred
> > (bounce or trace service failure)
> >
> > instead of status=deferred (host .. said: 450 ...)
> >
> > from
I discovered I had bounce set to discard
I don't recall why, it's been that way for years. Maybe to suppress backscatter.
After i set it back to bounce' i got the expected 550 reject
On Mon, Apr 22, 2024 at 2:09 AM Viktor Dukhovni via Postfix-users
wrote:
>
> On Mon, Apr 22, 2024 at 12:21:01AM
On Mon, Apr 22, 2024 at 12:21:01AM -0400, 785 243 via Postfix-users wrote:
> Recently i'm seeing a few messages deferred with status=deferred
> (bounce or trace service failure)
>
> instead of status=deferred (host .. said: 450 ...)
>
> from the logs:
>
> postfix/smtp[272605]: warning:
