It doesn't matter whether the host is up and not accepting SMTP connections or completely down. The sending mail server will try the next highest MX record. The only time a sending mail server will give up is if NONE of the MXs are available and the retry period is up, OR if it receives an actual SMTP error code from the receiving server.
So, either Casey's SMTP server is not configured to try all possible MX records (a violation of RFC2821 I believe), OR mail.kpafilmes.com isn't configured to accept mail for the kpafilms.com domain. At least, that's what I think... ;) Steven --- Steven Dickenson <[EMAIL PROTECTED]> Network Administrator The Key School, Annapolis Maryland -----Original Message----- From: Blunt, James H (Jim) [mailto:[EMAIL PROTECTED] Sent: Thursday, July 17, 2003 12:17 PM To: Exchange Discussions Subject: RE: misconfigured sender Let's go back to the MX record: kpafilms.com MX preference = 10, mail exchanger = mail.kpafilms.com (This server is fine) kpafilms.com MX preference = 5, mail exchanger = mi.kpafilms.com (server is not down...it is just refusing connections on port 25, so it's not going to roll over to the next server). This is why nothing addressed to @kpafilms.com is going thru but e-mail addressed to @mail.kpafilms.com is. Internal name vs. external name isn't going to matter. That's all internal to their DNS stuff. -----Original Message----- From: Friese, Casey [mailto:[EMAIL PROTECTED] Sent: Thursday, July 17, 2003 6:52 AM To: Exchange Discussions Subject: RE: misconfigured sender more info I gleaned from their IT guy: Mi.kpafilms.com is the MX record for the server with an internal dns name of KPAMIS01.kpafilms.com Mail.kpafilms.com is the MX record for the server with an internal dns name of EXCBD01.kpafilms.com Because the MX recs and the actual machine names don't match, is that possibly stopping my messages from getting to them? When I look at the headers of messages they send me, the internal dns name of their sending server is being sent as: Received: from exbdc01.kpafilms.com ([12.155.200.200]). The 12.155.200.200 IP is actually the IP of mail.kpafilms.com, to the internet, exbdc01.kpafilms.com doesn't exist. I'm pulling at things here, I know this probably shouldn't have a bearing on whether or not I can send mail to them because I can send to them from any other account. Also, if mi.kpafilms.com is down, shouldn't mail.kpafilms.com take over it's load? I'm puzzled that since I can send mail from outlook to [EMAIL PROTECTED], why when I send to [EMAIL PROTECTED], is the mail not sent to the second MX record since the first one is down? -----Original Message----- From: Blunt, James H (Jim) [mailto:[EMAIL PROTECTED] Sent: Wednesday, July 16, 2003 5:25 PM To: Exchange Discussions Subject: RE: misconfigured sender Well, let me take a stab at this... Because of this: kpafilms.com MX preference = 10, mail exchanger = mail.kpafilms.com kpafilms.com MX preference = 5, mail exchanger = mi.kpafilms.com Due to your MX record, all mail addressed to kpafilms.com is going to MI.kpafilms.com, which is not allowing connections on port 25. However, when you send directly to mail.kpafilms.com, it allows the connection. -----Original Message----- From: Friese, Casey [mailto:[EMAIL PROTECTED] Sent: Wednesday, July 16, 2003 12:51 PM To: Exchange Discussions Subject: RE: misconfigured sender OK, why would I be able to send to the mx record of the domain and not the domain itself? Example: Sending to [EMAIL PROTECTED] sits in my queue and wont deliver But If I send to [EMAIL PROTECTED] it get's delivered fine Mail.kpafilms.com is the MX record -----Original Message----- From: Dickenson, Steven [mailto:[EMAIL PROTECTED] Sent: Tuesday, July 15, 2003 3:12 PM To: Exchange Discussions Subject: RE: misconfigured sender Can we get the full headers for that NDR? Steven --- Steven Dickenson <[EMAIL PROTECTED]> Network Administrator The Key School, Annapolis Maryland -----Original Message----- From: Friese, Casey [mailto:[EMAIL PROTECTED] Sent: Tuesday, July 15, 2003 3:07 PM To: Exchange Discussions Subject: RE: misconfigured sender Sorry Roger if I butchered the NDR...here's exactly what it says (very unimformative) I guess it would be more approiate to call it a Dilvery delayed report, we never receive and actual NDR and the recipient never receives the message. This is an automatically generated Delivery Status Notification. THIS IS A WARNING MESSAGE ONLY. YOU DO NOT NEED TO RESEND YOUR MESSAGE. Delivery to the following recipients has been delayed. [EMAIL PROTECTED] -----Original Message----- From: Roger Seielstad [mailto:[EMAIL PROTECTED] Sent: Tuesday, July 15, 2003 12:34 PM To: Exchange Discussions Subject: RE: misconfigured sender Seeing as Casey has butchered the NDR's its nearly impossible to tell what's actually happening. However, its not *completely* impossible. penncolor.com *is* delivering the mail, and the reject is coming from their end: > Received: from exbdc01.kpafilms.com > mail.kpafilms.com[12.155.200.200](misconfigured sender)) Their Exchange (I presume) server (exbdc01.kpafilms.com) is rejecting the mail from their mail relay (mail.kpafilms.com), as is clearly spelled out by this slice of NDR. And, in this case, the fix is the same for Ex 5.5 and for E2k - beat the foreign postmaster about the head and shoulders with a 2x4 until they fix their mail issues. Roger -------------------------------------------------------------- Roger D. Seielstad - MTS MCSE MS-MVP Sr. Systems Administrator Inovis Inc. > -----Original Message----- > From: Dickenson, Steven [mailto:[EMAIL PROTECTED] > Sent: Tuesday, July 15, 2003 11:52 AM > To: Exchange Discussions > Subject: RE: misconfigured sender > > > For some reason, it would appear that your mail server is delaying the > message, instead of trying the next highest MX record. Having two MX > records, with the first being unavailable, is common practice (at > least in the *nix world), where the higher-level MX is an SMTP > gateway. > > Unfortunately, I can't tell you how to fix this, I'm still on Ex5.5. > > Steven > --- > Steven Dickenson <[EMAIL PROTECTED]> > Network Administrator > The Key School, Annapolis Maryland > > -----Original Message----- > From: Friese, Casey [mailto:[EMAIL PROTECTED] > Sent: Tuesday, July 15, 2003 11:48 AM > To: Exchange Discussions > Subject: misconfigured sender > > > Greetings, > > =-=-=-=-=-=-=-=- > Server is E2K > =-=-=-=-=-=-=-=- > > My company is having problems sending mail to another company (simply > put) > > NDRs received state the following: > > "Deliver to the following recipient has been delayed." > > The NDR is received days after being sent. > > I've verified that I can send to the other company from an account > outside of our domain (hotmail for example) > > The message header received from the other company when sending mail > to us looks as follows: > > [SNIP] > Received: from exbdc01.kpafilms.com > mail.kpafilms.com[12.155.200.200](misconfigured sender)) [SNIP] > www.dnsreport.com shows that the domain has 2 MX records and the > primary is unreachable. > > > > [SNIP] > 10 mail.kpafilms.com. > 5 mi.kpafilms.com. > > ERROR: I could not connect to one or more of your mailservers: > mi.kpafilms.com: Timed out [Last data sent: QUIT ] > [SNIP] > > Question: > > Is there anything I can do on my end to allow this mail to go through? > I suspect that something has changed on the other company's end > because until the 25th of June, we had no problems sending to them. > > Thanks, > > Casey > > > > > > > > > > _________________________________________________________________ > List posting FAQ: http://www.swinc.com/resource/exch_faq.htm > Web Interface: > http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&t ext_mode=&lang =english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&; lang =english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&; lang=english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&; lang =english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&; lang=english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&; lang =english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&; lang=english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&lang =english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&lang =english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/cgi-bin/lyris.pl?enter=exchange&text_mode=&lang=english To unsubscribe: mailto:[EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED]
