Question

No Inbound Email: Sonicwall Email Security Appliance & Sonicwall

Asked by: rcritchet

We are still running Exchange 2000, behind a Sonicwall 2040 Firewall - everything works, life is good. I just purchased a Sonicwall Email Security Appliance  Model 200 to offload the spam filtering from the Exchange server.
Set it up per the book & pointed the firewall to it, and it to Exchange.. Nada
When I tried to telnet on port 25 from the command line on the spam device, I just got "Connection closed by foreign host" 100% of the time. Tech support basically said it's an Exchange problem.
I created a computer in AD named same as the spam device & now get a 220 connect from telnet but it won't accept any further commands...
I've been beating on this for about 2 weeks & SW tech support on it for 8 hours..

Anyone with any insight PLEASE.......

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Asked On
2009-11-05 at 07:03:16ID24874635
Tags

Sonicwall

,

SMTP; ESMTP

,

Exchange 2000

Topics

Network Software Firewalls

,

Exchange Email Server

,

Networking Hardware Firewalls

Participating Experts
1
Points
150
Comments
9

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Answers

 

by: endital1097Posted on 2009-11-05 at 07:37:32ID: 25750593

check the configuration of your smtp virtual server on the exchange server
ensure that it is not only accepting connections from specified ip addresses or that you add your new sonice to the list

 

by: rcritchetPosted on 2009-11-05 at 07:41:21ID: 25750638

nope- Accepting from all sources

 

by: endital1097Posted on 2009-11-05 at 07:56:33ID: 25750793

firewall issue
blocking smtp commands

 

by: rcritchetPosted on 2009-11-05 at 09:52:03ID: 25752008

But this is inside of the firewall... I can ping & can establish the telnet..
not arguing just very confused...
I set a access rule to ip of spam device to ip of Exchange... no love

{sigh} very confused...

 

by: endital1097Posted on 2009-11-05 at 10:52:24ID: 25752605

is this what you are seeing
http://support.microsoft.com/kb/320027

 

by: rcritchetPosted on 2009-11-05 at 12:33:38ID: 25753679

nope....

 

by: rcritchetPosted on 2009-11-05 at 13:26:03ID: 25754223

basically I get the 220 message & no further responses. I can out in anything.. ctrl-d will end it.
On the Exchange server, I see an open connection under SMTP ...

 

by: endital1097Posted on 2009-11-06 at 05:59:18ID: 25759097

i would verify internally that you can telnet to port 25
then contact sonicwall and state you believe the device is blocking smtp commands

 

by: rcritchetPosted on 2009-11-14 at 09:19:34ID: 25821561

well, appears the appliance was binged up... dunno how it could be and neither do they..rma'd a new unit in

5 minutes- up, running, no hassles
and nothing on the excnage side changed

20120131-EE-VQP-002

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