Author: Craig Whitmore Date: To: W B Hacker, exim users Subject: Re: [exim] What's up ith the uceprotect blacklist?
>
> Many folks treat a sender-verify callout as a probe.
> Many more don't respond in a useful or timely way.
>
> We *have* given it up.
I've started to use callouts and I personally find they work quite well
except for people who insist on sending out emails from invalid address so
I've had to whitelist a few things like noreply@ etc. Also there are broken
SMTP Servers which don't accept bounces (so I report them to rfc-ignorant).
Most of the time I can contact the owners of the mail servers and get them
to fix their broken mail servers.