Re: [Exim] poor man's teergrubing

On Feb 27 John Dalbec wrote:

>I'm considering adding delays to acl_check_rcpt for blacklisted hosts and for
>invalid local recipients. Any idea what reasonable values would be? I don't

See RFC2821 sec. 4.5.3.2

If you know you're going to process the mail in less than one minute, you
can delay 4m in both the MAIL and the RCPT ACLs (after checks for
authenticated SMTP etc..)

This has proved rather effective for us :)