I wrote that last message too quickly. MailSite eventually relayed the bad mail to the Linux server.
-----Original Message----- From: Andrey Fyodorov Sent: Tuesday, January 14, 2003 2:50 PM To: Exchange Discussions Subject: RE: messages frozen in an SMTP queue I also routed the bad messages to the Linux server via a Rockliffe Mailsite server that we have. Same result - the Linux server is not accepting them from Mailsite. -----Original Message----- From: Andrey Fyodorov Sent: Tuesday, January 14, 2003 12:05 AM To: Exchange Discussions Subject: Re: messages frozen in an SMTP queue nothing in the logs. I tried to change the formatting for the Linux server's domain (7-bit, 8-bit, US ASCII, ISO, etc) - nothing helped. Since even BLAT can't send that message over to Linux, I suspect that there are some characters in the message that Linux does not accept. ----- Original Message ----- From: "Public Folder: Exchange" <[EMAIL PROTECTED]> To: "Exchange Discussions" <[EMAIL PROTECTED]> Sent: Monday, January 13, 2003 6:09 PM Subject: RE: messages frozen in an SMTP queue Perhaps are you allowing 8-bit MIME or some such strange format that the Linux machine does not accept. Have you looked at your Exchange/SMTP logs? There should be an error message of some sort. -Kevin > -----Original Message----- > From: Andrey Fyodorov [mailto:[EMAIL PROTECTED]] > Posted At: Monday, January 13, 2003 1:46 PM > Posted To: Exchange > Conversation: messages frozen in an SMTP queue > Subject: messages frozen in an SMTP queue > > > Hi all. I have Exchange 2000, SP3. > > Due to company's needs some of our mail is being directly > forwarded to another mail server which is running on Linux > and someone else is taking care of that mail server. That > persona also thinks that there could be no problems on the Linux side. > > Here is the problem. > > Some of the mail that our Exchange server receives and > forwards to the Linux server is spam. > > Some of this spam gets stuck (frozen) in the Linux server > -bound SMTP queue. The queue goes into retry state with > comment "connection was dropped by the remote host". Once the > "bad" message gets frozen, all the subsequent messages get > stuck - Linux server keeps dropping connection every time the > Exchange server retries the bad message, and the good > messages can't flow "around" the bad one. > > The Linux guy just thinks that this is Exchange problem, > since they receive mail from everywhere else without problems. > > The Exchange SMTP logs don't show anything specific - MAIL > FROM is OK, RCPT TO is OK, Exchange server says DATA and > Linux server says READY FOR DATA. That's when there is no > more communication until the next retry. The Linux guy says > "oh, your Exchange server does not understand READY FOR DATA > and times out". To which I answer, "how about 99% of messages > that the Echange server delivers to your Linux server without > problems?" > > So I fished out the file of the bad message from the queue > and tried to BLAT it directly to the Linux server. BLAT > failed. So to me it looks like the problem is with the data > in the message, and Linux server does not like it. > > When I look at the message file in Notepad, I see a bunch of > weird square [] characters, probably un-common carriage returns. > > My feeling is that the Linux server does not like those > characters or their quantity. > > Does anyone here have experienced similar problems when > sending mail from Exchange to Linux? > > > _________________________________________________________________ > 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] _________________________________________________________________ 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] _________________________________________________________________ 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]
