http://www.ISAserver.org -------------------------------------------------------gotta be some sort of connect limit, i would have thought noop as well. Have you customised any of your smtp rules or smtp filters beyond the normal setup? have you customised any of the settings exchange connection limit settings
whats the hardware specs of the exchange box and isa box? how long do you wait for the before banner before closing the window? Greg----- Original Message ----- From: "ISA" <ISA@xxxxxxxxxxxxxxxx>
To: <isalist@xxxxxxxxxxxxx> Sent: Friday, January 19, 2007 1:29 PM Subject: [isalist] SMTP Connection Closed http://www.ISAserver.org ------------------------------------------------------- Nothing at all - I enter telnet mail.domain.com 25 (hit enter) the line disappears and the curser just sits there and blinks - no banner - nothing. If I hit enter again it goes back to the C:\ prompt. I tried the steps in that article mentioned earlier - but I can't get passed the first step (mentioned above). However, I see the port 25 attempt on the ISA firewall logs - then is CLOSES after 5 seconds. Joseph Danielsen, MCSA-Messaging, MCP Network Blade Inc. 49 Marcy Street Somerset, NJ 08873 732-213-0600 www.networkblade.com -----Original Message----- From: isalist-bounce@xxxxxxxxxxxxx [mailto:isalist-bounce@xxxxxxxxxxxxx] On Behalf Of Thor (Hammer of God) Posted At: Thursday, January 18, 2007 9:24 PM Posted To: ISA Conversation: [isalist] SMTP Connection Closed Subject: [isalist] Re: SMTP Connection Closed http://www.ISAserver.org ------------------------------------------------------- What actually happens when the telnet session is initiated? Do you see anything? Any connect at all? t On 1/18/07 6:10 PM, "ISA" <ISA@xxxxxxxxxxxxxxxx> spoketh to all:
http://www.ISAserver.org ------------------------------------------------------- Thanks guys - I'll follow the article is see what goes - Did anyone have any problems actually connecting? I also thought of MTU issues. Two of the sites that can not connect;
one
is fronted with a SonicWall, the other a Linksys (stop, don't even say it... I know). Joseph Danielsen, MCSA-Messaging, MCP -----Original Message----- From: isalist-bounce@xxxxxxxxxxxxx
[mailto:isalist-bounce@xxxxxxxxxxxxx]
On Behalf Of Greg Mulholland Posted At: Thursday, January 18, 2007 8:58 PM Posted To: ISA Conversation: [isalist] Re: SMTP Connection Closed Subject: [isalist] Re: SMTP Connection Closed http://www.ISAserver.org ------------------------------------------------------- I'm wondering if he is experiencing any other signs of flaky internet connection. Like in browsing etc etc. Ive seen mtu issues do this. Greg ----- Original Message ----- From: "Thor (Hammer of God)" <thor@xxxxxxxxxxxxxxx> To: <isalist@xxxxxxxxxxxxx> Sent: Friday, January 19, 2007 12:49 PM Subject: [isalist] Re: SMTP Connection Closedhttp://www.ISAserver.org ------------------------------------------------------- But that wouldn't have anything at all to do with telnetting to 25,whichI can do, but I now see that others cannot. A blacklist or etc will
not
affect that. t On 1/18/07 4:29 PM, "Amy Babinchak" <amy@xxxxxxxxxxxxxxxxxxxxxxxxxx> spoketh to all:It only effects incoming email. You can get around it by using a smarthost. Your cable companyprobablyallows 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[isalist]%20SMTP%
20Connection%20Closed.EML/1_multipart/image001.jpg>
<https://harbor.bounceme.net/Exchange/amy/Drafts/RE:%20[isalist]%20SMTP%
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 haveinconsistantincoming 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 thecorrectIP), "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 otherobviousthings besides filtering like bad DNS, flakey ISP, blacklisting, greylisting,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 awareofthe NOOP config in the SMTP filter properties. Amy: By client I mean another account with a separate ISP andExchangeserver 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[isalist]%20SMTP%
20Connection%20Closed.EML/1_multipart/%20>
<https://harbor.bounceme.net/Exchange/amy/Drafts/RE:%20[isalist]%20SMTP%
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) andfromExchange 2003 and SBS 2003. Some work and Some don't. When watchingtheISA real-time logs, the connection is initiated then 5 seconds later itisthen 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[isalist]%20SMTP%
20Connection%20Closed.EML/1_multipart/%20>
<https://harbor.bounceme.net/Exchange/amy/Drafts/RE:%20[isalist]%20SMTP%
20Connection%20Closed.EML/1_multipart/%20> ________________________________ From: isalist-bounce@xxxxxxxxxxxxx[mailto:isalist-bounce@xxxxxxxxxxxxx]<mailto:isalist-bounce@xxxxxxxxxxxxx%5d> On Behalf Of Thor (HammerofGod) 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 NOOPwithspaces.. 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 observedtheconnection initiated then being closed. From Exchange 2003 box I shut of IMF and GFI services - still notluckreceiving 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------------------------------------------------------ List Archives: //www.freelists.org/archives/isalist/ ISA Server Newsletter: http://www.isaserver.org/pages/newsletter.asp ISA Server Articles and Tutorials: http://www.isaserver.org/articles_tutorials/ ISA Server Blogs: http://blogs.isaserver.org/ ------------------------------------------------------ Visit TechGenix.com for more information about our other sites: http://www.techgenix.com ------------------------------------------------------ To unsubscribe visit http://www.isaserver.org/pages/isalist.asp Report abuse to listadmin@xxxxxxxxxxxxx------------------------------------------------------ List Archives: //www.freelists.org/archives/isalist/ ISA Server Newsletter: http://www.isaserver.org/pages/newsletter.asp ISA Server Articles and Tutorials: http://www.isaserver.org/articles_tutorials/ ISA Server Blogs: http://blogs.isaserver.org/ ------------------------------------------------------ Visit TechGenix.com for more information about our other sites: http://www.techgenix.com ------------------------------------------------------ To unsubscribe visit http://www.isaserver.org/pages/isalist.asp Report abuse to listadmin@xxxxxxxxxxxxx ------------------------------------------------------ List Archives: //www.freelists.org/archives/isalist/ ISA Server Newsletter: http://www.isaserver.org/pages/newsletter.asp ISA Server Articles and Tutorials: http://www.isaserver.org/articles_tutorials/ ISA Server Blogs: http://blogs.isaserver.org/ ------------------------------------------------------ Visit TechGenix.com for more information about our other sites: http://www.techgenix.com ------------------------------------------------------ To unsubscribe visit http://www.isaserver.org/pages/isalist.asp Report abuse to listadmin@xxxxxxxxxxxxx
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