Author: Suresh Ramasubramanian Date: To: Andrew - Supernews CC: exim-users Subject: Re: [Exim] Brain Dead ISP's?
On Sat, Jul 05, 2003 at 10:09:57AM +0100, Andrew - Supernews wrote: > If the content is objectionable, it is _MUCH_ better to reject it in
> the SMTP transaction rather than accept it and generate a bounce (or
> some other form of non-delivery notice) later, because as often as
> not the return-path is forged anyway.
Be warned, however, that rejecting at any stage than just after RCPT TO tends
to make at least some broken MTAs interpret this as a temporary / 4xx
failure, and then they start to pound multiple times on your box - several
times a minute, quite often.