Re: [Exim] ACL question

> > Is it possible to have ACLs do something immediately after (HE|EH)LO or MAIL
> > FROM: commands?
>
> Be aware that quite a number of mailers will treat 5xx at this stage
> as retryable. You're better advised, in general, to wait to RCPT-TO
> time - and then hit them on the head for their earlier transgressions.
>
> Some idiot mailers will then tell the sender that the recipient does
> not exist, instead of telling them the real reason that you sent: but
> that's hardly your fault.

Thos idiot mailers would be blocked at the IP level if they persist. It
just makes it much easier to me to read the rejection log.

Most of the stuff I'd be blocking is email that is not wanted (non-company
related).