You'll be able to identify the Cisco mailguard feature because it filters everything except 2 and 0, and replaces it with an asterisk. So your telnet session will be answered by ******22*********0******2****0***************
And it's not an extension of SMTP; it's a forced limitation of it. > -----Original Message----- > From: Siegel, Richard [mailto:[EMAIL PROTECTED]] > Posted At: Thursday, November 01, 2001 01:06 PM > Posted To: MSExchange Mailing List > Conversation: host unreachable > Subject: host unreachable > > > > The question [I'll ask first] is why would mail to this > specific domain not > work? All other hosts work. And intellocity claims that they have no > problems from any other mail servers. > now the info: > > I am having a mildy intermittent mail delivery problem, and > for the most > part it is non-working vs working.Errors that were discovered > linking to > Intellocity are as follows: > > Upon setting Maximum SMTP logging in Exchange 5.5 [I am at actv.com] > - Event 3010 is being recorded in app event log > -Event 2003 is also being recorded app event log > > 3010:An attempt to connect to host intellocity.com failed. > > Event ID 3010 can be caused by the any of the following scenarios: > There is a name resolution issue to the relay host. > There are limitations of the relay host, such as inbound > connections are > allowed. > There is a firewall issue. > To continue troubleshooting, run Telnet to determine if the > IP address that > is listed in the event is correct. Next, verify that the IP > address has a > functioning SMTP port. > > > Event 2003: > A new TCP/IP SMTP connection has been made to host 64.139.16.228 (for > intellocity.com). Logfile: L0000004.LOG > According to technet: > If an event ID 2003 is reported, a connection has been made > to that relay > host. If you are experiencing event 2003 in addition to the > other events, > you may need to troubleshoot this issue as an intermittent > issue. This event > can occur if the maximum number of inbound connections to the > relay host has > been reached. > > I wanted to see where it was actually breaking down- So I > went into the raw > SMTP log files and excerpted the following: > > 9/7/2001 2:53:20 PM : <<< IO: |250 OK - Recipient > <[EMAIL PROTECTED]> > | > 9/7/2001 2:53:20 PM : <<< 250 OK - Recipient <[EMAIL PROTECTED]> > 9/7/2001 2:53:20 PM : >>> DATA > > 9/7/2001 2:53:20 PM : <<< IO: |354 Send data. End with CRLF.CRLF > | > 9/7/2001 2:53:20 PM : <<< 354 Send data. End with CRLF.CRLF > 9/7/2001 2:55:03 PM : 499 Host unreachable: intellocity.com. Message > subject: ""RE: Stock Options"". Rescheduling delivery for later. > > > A technet lookup at this 499 error indicates: > A 499 Error: "No routing hosts are reachable," indicates that the TCP > connection has been dropped. > My guess-obviously I am not a network engineer, is they are > running some > extended smtp set, like the cisco smtp fixup protocol or some > outside factor > is disconnecting them.? > > Please help. I tried to furnish as much info as I could. > > > Rich > -----Original Message----- > From: Fogarty, David > Sent: Friday, September 07, 2001 5:07 PM > To: Mitchell, Gary; Siegel, Richard; @Unix Team > Subject: Email to Intellocity... > > We should document several tests to have on hand when we > inevitably get > asked what we've done about the situation.... An email to > Derik with the > tests we've done and the results we obtained would be wise as well. > > I don't want to say "It's not us" though until we're 100% > positive..... > > _________________________________________________________________ > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > Archives: http://www.swynk.com/sitesearch/search.asp > To unsubscribe: mailto:[EMAIL PROTECTED] > Exchange List admin: [EMAIL PROTECTED] > _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Archives: http://www.swynk.com/sitesearch/search.asp To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED]
