[76458] in North American Network Operators' Group
Re: verizon.net and other email grief
daemon@ATHENA.MIT.EDU (Krzysztof Adamski)
Fri Dec 10 18:03:56 2004
Date: Fri, 10 Dec 2004 18:03:11 -0500 (EST)
From: Krzysztof Adamski <k@adamski.org>
To: "Jeffrey I. Schiller" <jis@mit.edu>
Cc: Rich Kulawiec <rsk@gsp.org>, <nanog@merit.edu>
In-Reply-To: <20041210151941.H740@mit.edu>
Errors-To: owner-nanog-outgoing@merit.edu
On Fri, 10 Dec 2004, Jeffrey I. Schiller wrote:
>
> On Fri, Dec 10, 2004 at 12:26:59PM -0500, Rich Kulawiec wrote:
> > One thing that's not clear is whether or not Verizon caches any of
> > this information.
>
> It appears that they do some amount of caching.
>
> -Jeff
>
It does not appear that they are caching it, here is a sample from my log
file:
Dec 6 19:18:15 white sm-mta[25976]: iB70IF6n025976: <lopqp@abc.net>... User unknown
Dec 6 19:18:15 white sm-mta[25977]: iB70IF6n025977: <lopqp@abc.net>... User unknown
Dec 6 19:18:16 white sm-mta[25976]: iB70IF6n025976: from=<>, size=0, class=0, nrcpts=0, proto=SMTP, daemon=MTA, relay=sc006pub.verizon.net [206.46.170.182]
Dec 6 19:18:16 white sm-mta[25977]: iB70IF6n025977: from=<>, size=0, class=0, nrcpts=0, proto=SMTP, daemon=MTA, relay=sc019pub.verizon.net [206.46.170.68]
Dec 6 19:18:16 white sm-mta[25976]: iB70IF6o025976: <lopqp@abc.net>... User unknown
Dec 6 19:18:16 white sm-mta[25977]: iB70IF6o025977: <lopqp@abc.net>... User unknown
Dec 6 19:18:16 white sm-mta[25976]: iB70IF6o025976: lost input channel from sc006pub.verizon.net [206.46.170.182] to MTA after rcpt
Dec 6 19:18:16 white sm-mta[25976]: iB70IF6o025976: from=<antispam245967@west.verizon.net>, size=0, class=0, nrcpts=0, proto=SMTP, daemon=MTA, relay=sc006pub.verizon.net [206.46.170.182]
Dec 6 19:18:16 white sm-mta[25977]: iB70IF6o025977: lost input channel from sc019pub.verizon.net [206.46.170.68] to MTA after rcpt
Dec 6 19:18:16 white sm-mta[25977]: iB70IF6o025977: from=<antispam830748@west.verizon.net>, size=0, class=0, nrcpts=0, proto=SMTP, daemon=MTA, relay=sc019pub.verizon.net [206.46.170.68]
What happens when verizon tries to send email to somebody who does the same
type of check, does this not create an infinite loop?
K
