[165672] in North American Network Operators' Group
Re: The block message is 521 DNSRBL: Blocked for abuse
daemon@ATHENA.MIT.EDU (Jean-Francois.TremblayING@videotro)
Wed Sep 18 13:48:47 2013
In-Reply-To: <FFBA9BEA-8D40-4AF7-BEC0-4776AFC42BF8@pch.net>
To: nanog@nanog.org
From: Jean-Francois.TremblayING@videotron.com
Date: Wed, 18 Sep 2013 13:47:57 -0400
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
> > Our mail server IP address is 74.112.99.25. Is it possible they
> are blocking us based on old information from the previous IP
> address block owner?
>
> Quite likely, yes.
https://www.arin.net/resources/whowas/
Found it to be of use for this type of question. Registration required.
Geolocation information often needs updating for these "recycled" ranges.
/JF
