[Dshield] AOL rejecting emails ?

Doug White doug at dwhite.ws
Sun Jun 29 22:18:29 GMT 2003


Yes.  AOL is refusing connections from "direct to MX" mailers, they will only
accept connections from mail servers at static IP numbers.  This is an RFC
violation, but AOL doesn't care, they are trying to beat back what they consider
one of the sources of spam.

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----- Original Message ----- 
From: "Andreas Bischoff" <a.bischoff at ieee.org>
To: "General DShield Discussion List" <list at dshield.org>
Sent: Sunday, June 29, 2003 4:01 PM
Subject: [Dshield] AOL rejecting emails ?


| Dear all,
|
| in light of the discussions about port and content filtering
| I decided to describe my little problem with AOL, although
| it's not directly security related:
|
| Today I got the following error message after sending an email to
| an AOL user:
|
| The original message was received at Sun, 29 Jun 2003 20:46:44 +0200
| from dclientxx-xxx-x-xxx.hispeed.ch [xx.xxx.x.xxx]
|
|    ----- The following addresses had permanent fatal errors -----
| <xxxxxxx at aol.com>
|     (reason: 550 DIRECT CONNECTION FROM DIAL-UP OR DYNAMIC-IP DENIED)
|
|    ----- Transcript of session follows -----
| ... while talking to mailin-03.mx.aol.com.:
| <<< 550 DIRECT CONNECTION FROM DIAL-UP OR DYNAMIC-IP DENIED
| ... while talking to mailin-04.mx.aol.com.:
| >>> QUIT
|
|
| Anybody else seen such behavior ?
|
| Best Regards,
|
| Andreas
|
|
|
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|




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