nanog mailing list archives
Re: tcsender email bombing
From: Bradley Dunn <bradley () dunn org>
Date: Wed, 5 Nov 1997 01:34:24 -0500 (EST)
On Tue, 4 Nov 1997, John-David Childs wrote:
You may want to change your 451 errors into 571 errors at least for this particular domain. From RFC1893:
Nov 4 04:05:48 bconnex.net sendmail[4697]: Ruleset check_mail (<tcsender () get-more-hits com>) rejection: 451 <tcsender () get-more-hits com>... Domain must resolve
The usual reason cited for using 4xx errors instead of 5xx errors in this case is that DNS failures can be transient. Bradley
Current thread:
- tcsender email bombing Dennis Simpson (Nov 04)
- Re: tcsender email bombing Bob Izenberg (Nov 04)
- Re: tcsender email bombing John-David Childs (Nov 04)
- Re: tcsender email bombing Jon Lewis (Nov 04)
- Re: tcsender email bombing Bradley Dunn (Nov 04)
- <Possible follow-ups>
- Re: tcsender email bombing Dennis Simpson (Nov 04)
- Re: tcsender email bombing Dennis Simpson (Nov 04)
- Re: tcsender email bombing Doug Davis (Nov 04)