Re: [anti-spam-wg] Re: [anti-spam-wg@localhost] Verizon blocking all IP addresses delegated by RIPE?
To: Thor Kottelin <>
From: Piet Beertema <>
Date: Tue, 06 Dec 2005 13:08:03 +0100
> Date: Mon, 05 Dec 2005 16:01:11 -0800
> From: "MadGar" madgar@localhost
> Verizon is blocking email from a local high school email. The email
> ends in paasda.org. Thus, all email from the schools is returned to
It is very common for email providers to use local and/or distributed
blocking lists. These are usually more or less dynamic.
It's also common to block e-mail that comes directly from hosts
on a DSL connection. This might be the problem with paasda.org:
# dig paasda.org. mx
paasda.org. 60 IN MX 10 mail01.paasda.org.
# dig mail01.paasda.org. a
mail01.paasda.org. 51 IN A 18.104.22.168
# host 22.214.171.124
Right: a DSL customer. Perhaps they're sending outgoing mail
directly from this mailhost instead of via their ISP's mailhost.