On Wed, 11 May 2011 16:35:50 -0400 Michael Scheidell <michael.scheid...@secnap.com> wrote:
> if someone sends an email to 175 people, once they hit 'x' number in > the first email attempt, we send '4xx too many emails' Ah, ok. We avoid issuing 4xx in response to a "RCPT" command because quite a lot of badly-written SMTP software doesn't handle that well. We 4xx after DATA when greylisting which doesn't seem to give as much trouble. Regards, David.
