[isalist] SMTP Connection Closed
- From: "ISA" <ISA@xxxxxxxxxxxxxxxx>
- To: <isalist@xxxxxxxxxxxxx>
- Date: Thu, 18 Jan 2007 20:04:35 -0500
Amy - I'm not sure of this - possibly some confusion here.
I am trying to connect (send mail) FROM a remote company which is a new
setup TO my server (which closes the SMTP connection). Even if my server
was Blacklisted, it would have any effect on incoming mail from the
remote companies.
My server being Blacklisted would only effect its mail from being
received by others, not my server receiving mail from others. Am I wrong
with this understanding?
Here, my problem is, receiving email (and Telnet connections to p-25)
from a brand new company, brand new domain, brand new server, on a brand
new T1 line.
Joseph Danielsen, MCSA-Messaging, MCP
Network Blade Inc.
49 Marcy Street
Somerset, NJ 08873
732-213-0600
www.networkblade.com <http://www.networkblade.com/>
________________________________
From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx]
On Behalf Of Amy Babinchak
Sent: Thursday, January 18, 2007 7:29 PM
To: isalist@xxxxxxxxxxxxx
Subject: RE: [isalist] SMTP Connection Closed
It only effects incoming email.
You can get around it by using a smarthost. Your cable company probably
allows you to use their server for such purpose. That's how I get around
it.
________________________________
From: isalist-bounce@xxxxxxxxxxxxx on behalf of ISA
Sent: Thu 1/18/2007 7:22 PM
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] SMTP Connection Closed
I thought that would affect my outgoing mail - not incoming!
<unfortunately I can't get a static IP for another few months, I will
then>
Joseph Danielsen, MCSA-Messaging, MCP
Network Blade Inc.
49 Marcy Street
Somerset, NJ 08873
732-213-0600
www.networkblade.com <http://www.networkblade.com/>
<https://harbor.bounceme.net/Exchange/amy/Drafts/RE:%20%5bisalist%5d%20S
MTP%20Connection%20Closed.EML/1_multipart/image001.jpg>
<https://harbor.bounceme.net/Exchange/amy/Drafts/RE:%20%5bisalist%5d%20S
MTP%20Connection%20Closed.EML/1_multipart/image002.jpg>
________________________________
From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx]
On Behalf Of Amy Babinchak
Sent: Thursday, January 18, 2007 7:20 PM
To: isalist@xxxxxxxxxxxxx
Subject: RE: [isalist] SMTP Connection Closed
according to dsnstuff.com you are listed on 3 blacklists and have no
reverse DNS entry. That's enough right there to cause you to have
inconsistant incoming email issues.
________________________________
From: isalist-bounce@xxxxxxxxxxxxx on behalf of ISA
Sent: Thu 1/18/2007 7:06 PM
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] SMTP Connection Closed
Amy:
DNS seems to be working (mail.networkblade.com resolves to the correct
IP), "I" am not blacklisting and I don't know how to Grey list.
The ISP (cable company) is always suspect of everything else.
Joseph Danielsen, MCSA-Messaging, MCP
Network Blade Inc.
49 Marcy Street
Somerset, NJ 08873
732-213-0600
________________________________
From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx]
On Behalf Of Amy Babinchak
Sent: Thursday, January 18, 2007 7:02 PM
To: isalist@xxxxxxxxxxxxx
Subject: RE: [isalist] SMTP Connection Closed
So assuming that this used to work you've eliminated the other obvious
things besides filtering like bad DNS, flakey ISP, blacklisting, grey
listing, etc?
________________________________
From: isalist-bounce@xxxxxxxxxxxxx on behalf of ISA
Sent: Thu 1/18/2007 6:46 PM
To: isalist@xxxxxxxxxxxxx
Subject: [isalist] SMTP Connection Closed
Good questions!
Thor: I was referring to Exchange filtering NOT ISA. I was not aware of
the NOOP config in the SMTP filter properties.
Amy: By client I mean another account with a separate ISP and Exchange
server somewhere else in the world. i.e. NJ.
Joseph Danielsen, MCSA-Messaging, MCP
Network Blade Inc.
49 Marcy Street
Somerset, NJ 08873
732-213-0600
www.networkblade.com <http://www.networkblade.com/>
<https://harbor.bounceme.net/Exchange/amy/Drafts/RE:%20%5bisalist%5d%20S
MTP%20Connection%20Closed.EML/1_multipart/%20>
<https://harbor.bounceme.net/Exchange/amy/Drafts/RE:%20%5bisalist%5d%20S
MTP%20Connection%20Closed.EML/1_multipart/%20>
________________________________
From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx]
On Behalf Of Thor (Hammer of God)
Posted At: Thursday, January 18, 2007 6:40 PM
Posted To: ISA
Conversation: [isalist] SMTP Connection Closed
Subject: [isalist] Re: SMTP Connection Closed
Just to make sure we're saying the same thing.. Not filtering via
Exchange and 3rd party- the ISA SMTP filter. You disabled that?
t
On 1/18/07 3:30 PM, "ISA" <ISA@xxxxxxxxxxxxxxxx> spoketh to all:
Thor - thanks but I've turned off ALL filtering via Exchange and 3rd
party software.
I've tried connecting (via telnet) from multiple locations (ISP) and
from Exchange 2003 and SBS 2003. Some work and Some don't. When watching
the ISA real-time logs, the connection is initiated then 5 seconds later
it is then closed by the Exchange publishing rule.
A 12-pack for the one who gets this one!
<and this is on my own server/network>
Joseph Danielsen, MCSA-Messaging, MCP
Network Blade Inc.
49 Marcy Street
Somerset, NJ 08873
732-213-0600
www.networkblade.com <http://www.networkblade.com/>
<http://www.networkblade.com/>
<https://harbor.bounceme.net/Exchange/amy/Drafts/RE:%20%5bisalist%5d%20S
MTP%20Connection%20Closed.EML/1_multipart/%20>
<https://harbor.bounceme.net/Exchange/amy/Drafts/RE:%20%5bisalist%5d%20S
MTP%20Connection%20Closed.EML/1_multipart/%20>
________________________________
From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx]
<mailto:isalist-bounce@xxxxxxxxxxxxx%5d> On Behalf Of Thor (Hammer of
God)
Posted At: Thursday, January 18, 2007 6:22 PM
Posted To: ISA
Conversation: [isalist] SMTP Connection Closed
Subject: [isalist] Re: SMTP Connection Closed
Check your SMTP filter settings for command lengths... NOOP has been
problematic before at its default of 6 - I changed mine to 20 after
sniffing traffic and determining some older Exchange boxes were padding
NOOP with spaces..
t
On 1/18/07 1:46 PM, "ISA" <ISA@xxxxxxxxxxxxxxxx> spoketh to all:
Hope someone can help!
I think this is an ISA 2004 (patched) issue.
From some clients I can send/receive email just fine (and telnet port
25). But from other clients I can not. I monitored the ISA logs and
observed the connection initiated then being closed.
From Exchange 2003 box I shut of IMF and GFI services - still not luck
receiving email or telnet'ing from a particular client.
Any ideas would be greatly appreciated.
Respectfully
Joseph Danielsen, MCSA-Messaging, MCP
Network Blade Inc.
49 Marcy Street
Somerset, NJ 0887
732-213-0600
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