It also appears your MX record is pointing to HYPERLINK "http://www.networkblade.com"www.networkblade.com and not mail.networkblade.com. Mark. _____ From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On Behalf Of Amy Babinchak Sent: Thursday, January 18, 2007 4:20 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 HYPERLINK "http://www.networkblade.com/"www.networkblade.com _____ 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 HYPERLINK "http://www.networkblade.com/";<http://www.networkblade.com/> _____ From: isalist-bounce@xxxxxxxxxxxxx [HYPERLINK "mailto:isalist-bounce@xxxxxxxxxxxxx%5d"mailto:isalist-bounce@xxxxxxxxxxxxx] 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 -- No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.432 / Virus Database: 268.16.13/632 - Release Date: 1/16/2007 4:36 PM -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.5.432 / Virus Database: 268.16.13/632 - Release Date: 1/16/2007 4:36 PM