Hello All, I've got a client on my IMail server that is having problems receiving emails from one of their customers. At one time I was using a kill.lst on the domain, and the client was listed but I've since removed the client and completely disabled the list. The return message shows a "501 unacceptable address" for my client which is what I would see if the sender was listed in the kill file. I've double checked that the senders email host is NOT listed in the kill file and that the kill file is not active. I don't understand why my client is still having these problems, and it's only from the one customer.
One thing I did notice is that the return email is prefaced with the following: This is the mail delivery agent at messagelabs.com. I was not able to deliver your message to the following addresses. <[EMAIL PROTECTED]> Connected to 208.255.176.2 but sender was rejected. Remote host said: 501 unacceptable mail address I don't use messagelabs.com at all but my client's customer does. I checked the logs and couldn't find much. For example, the only record I found of the sender's address was in the "undeliverable" notification. I didn't see a MAIL FROM record. Here's the actual return message I got: ************************************* > From: [EMAIL PROTECTED] > Date: January 16, 2004 4:25:59 PM EST > To: [EMAIL PROTECTED] > Subject: failure notice > > This is the mail delivery agent at messagelabs.com. > I was not able to deliver your message to the following addresses. > > <[EMAIL PROTECTED]> Connected to 208.255.176.2 but sender was rejected. > Remote host said: 501 unacceptable mail address > > --- Below this line is a copy of the message. > > Return-Path: <[EMAIL PROTECTED] > X-VirusChecked: Checked > X-Env-Sender: [EMAIL PROTECTED] > X-Msg-Ref: server-14.tower-46.messagelabs.com!1074288356!708045 > X-StarScan-Version: 5.1.15; banners=-,-,- > Received: (qmail 3866 invoked from network); 16 Jan 2004 21:25:56 -0000 > Received: from pobox.upenn.edu (128.91.2.38) > by server-14.tower-46.messagelabs.com with SMTP; 16 Jan 2004 > 21:25:56 -0000 > Received: from [130.91.182.82] (oitblk74.med.upenn.edu [130.91.182.82]) > by pobox.upenn.edu (Postfix) with ESMTP id 5878D15F8 > for <[EMAIL PROTECTED]> >; Fri, 16 Jan 2004 16:25:56 -0500 (EST) > Mime-Version: 1.0 (Apple Message framework v609) > Content-Transfer-Encoding: 7bit > Message-Id: <[EMAIL PROTECTED]> > Content-Type: text/plain; charset=US-ASCII; format=flowed > To: [EMAIL PROTECTED] > From: Benjamin Bressman <[EMAIL PROTECTED] > Subject: test > Date: Fri, 16 Jan 2004 16:25:55 -0500 > X-Mailer: Apple Mail (2.609) > > test ******************************************* Anyone have any thoughts on this? Troy D. Hilton SofWerks LLC. [EMAIL PROTECTED] 302-529-1961 To Unsubscribe: http://www.ipswitch.com/support/mailing-lists.html List Archive: http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ Knowledge Base/FAQ: http://www.ipswitch.com/support/IMail/
