[Discuss] Mail loop advice?

[dbarrett at blazemonger.com (Daniel Barrett)]

On November 13, 2013, Jerry Feldman wrote:
>In any case, when postfix was rejecting the large emails, RCN
>interpreted that as a non-fatal, so it would resend at a later
>time. [...] I'm not sure what standard rejection postfix does with a
>message that exceeds the message-size-limit.

Postfix was sending "552 5.3.4 Message size exceeds fixed limit."
A Google search tells me that 5.3.4 is a fatal error code because of
the initial "5," but for whatever reason, it kept getting resent.

>In any case it was not a mail loop. It where RCN was resending the
>message in accordance to standard practices.

Two copies every five minutes, for over two weeks....

--
Dan Barrett
dbarrett at blazemonger.com