ncomper
asked on
Bounce Back "Requested action not taken: mailbox unavailable. [SMTP Error Code 550]"
A particular external client is having issues sending to a member of our staff (Full bounce back pasted below)
The External User in question can send to other members of our staff but not Denis, however other external people can send to Denis without any problems
I cant work it Out, we have 1 Exchange 2003 Server
----Original Message-----
From: E500_SMTP_Mail_Service [mailto:E500_SMTP_Mail_Ser
Sent: 10 August 2007 08:59
To: David.Johnson@externaldoma
Subject: Returned Mail - Error During Delivery
------ Failed Recipients ------
<dennis@ourdomain.co.uk>: Requested action not taken: mailbox unavailable. [SMTP Error Code 550]
-------- Returned Mail --------
Received: from unknown(100.1.100.23) by mailscanner.cwci via csmap
id 852edd28_4717_11dc_981f_00
Fri, 10 Aug 2007 07:58:45 +0000 (UTC)
Received: from CITB-MTA by externaldomain.com
with Novell_GroupWise; Fri, 10 Aug 2007 08:55:41 +0100
Message-Id: <s6bc280d.018@externaldoma
X-Mailer: Novell GroupWise Internet Agent 6.5.5
Date: Fri, 10 Aug 2007 08:55:30 +0100
From: "David Johnson" <David@@externaldomain.com
To: <dennis@ourdomain.co.uk
Subject: Test e-mail as requested by Julian
X-NAIMIME-Disclaimer: 1
Content-Type: Text/Plain
X-NAIMIME-Modified: 1
Thanks
Nick
The External User in question can send to other members of our staff but not Denis, however other external people can send to Denis without any problems
I cant work it Out, we have 1 Exchange 2003 Server
----Original Message-----
From: E500_SMTP_Mail_Service [mailto:E500_SMTP_Mail_Ser
Sent: 10 August 2007 08:59
To: David.Johnson@externaldoma
Subject: Returned Mail - Error During Delivery
------ Failed Recipients ------
<dennis@ourdomain.co.uk>: Requested action not taken: mailbox unavailable. [SMTP Error Code 550]
-------- Returned Mail --------
Received: from unknown(100.1.100.23) by mailscanner.cwci via csmap
id 852edd28_4717_11dc_981f_00
Fri, 10 Aug 2007 07:58:45 +0000 (UTC)
Received: from CITB-MTA by externaldomain.com
with Novell_GroupWise; Fri, 10 Aug 2007 08:55:41 +0100
Message-Id: <s6bc280d.018@externaldoma
X-Mailer: Novell GroupWise Internet Agent 6.5.5
Date: Fri, 10 Aug 2007 08:55:30 +0100
From: "David Johnson" <David@@externaldomain.com
To: <dennis@ourdomain.co.uk
Subject: Test e-mail as requested by Julian
X-NAIMIME-Disclaimer: 1
Content-Type: Text/Plain
X-NAIMIME-Modified: 1
Thanks
Nick
ASKER
this is bounce back the external Client recieved, they sent the bounce back to me for troubleshooting purposes.
Nick
Nick
ASKER CERTIFIED SOLUTION
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ASKER
Oh right sorry
We have a Borderware Firewall that acts as a mail server and forwards mail onto our Puremessage / Exchange Server, but with the Borderware its not just a normal NAT /port forward, it actually has a mail queue etc so maybe this could ne causing it
Thanks
Nick
We have a Borderware Firewall that acts as a mail server and forwards mail onto our Puremessage / Exchange Server, but with the Borderware its not just a normal NAT /port forward, it actually has a mail queue etc so maybe this could ne causing it
Thanks
Nick
Simon.