Wow...OK...first off, Sandy, Joe, Scott, please don't lump me into the "A record preference" thing. That was not my problem. I have not experienced that. Disassociate my name from this thread, please! My problem was where I THOUGHT that it MIGHT be looking at MX records in the order they were returned instead of the priority value.
All I can say for sure is that messages to that domain were failing even though the lowest proirity MX server, priority 5 (which, coincidently, is another IMail 7.1 box) was working properly. And the first MX record returned for that domain was priority 20 and it was not responding. And the last time I saw this happen, I turned on debugging and saw that IMail was trying to deliver to the priority 20 box, but now I can't prove it. And, again, that was an older version...7.0something. So you can see why I *thought* the problem might be that Imail was reading MX records in the order they were returned and not the priority value. And just for the record, I sent the original message as a question asking if anyone else thought this was what was happening...and asking if anyone else thought I was diagnosing it properly. I was certainly not stating it as fact. Just asking for help. And I got what I asked for...A statement from Robert Stull of Ipswitch and a few others saying this is not true. Good enough for me. I was planning to send the log files Saturday evening right after Scott and a few others said they hadn't seen it before and asked me too. I was just hoping to save my weekend time of getting to the servers, parsing logs, etc. If someone had replied with "Yeah...it's a known problem...", I would have saved an hour or two and dodged my wife's temper as well. Well...unfortunately, by the time I got back to the issue yesterday to turn on SMTP debug logging, the "unavailable" smtp box was available. So all I can do is wait until it breaks again and then send the logs. The next time I see it, I'll post the logs first since I know it is NOT a known issue. Thanks for all your help and consider the case closed. Feel free to continue fighting about the A RECORD thing, though. ;-) --Todd. ----- Original Message ----- From: "Bill Landry" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Saturday, July 27, 2002 10:53 PM Subject: RE: [IMail Forum] IMail not using MX record preference correctly? > Yep, Todd could certainly help us out in troubleshooting this by providing > some more detailed information. > > Bill > > -----Original Message----- > From: Rick Leske [mailto:[EMAIL PROTECTED]] > Sent: Saturday, July 27, 2002 7:21 PM > To: [EMAIL PROTECTED] > Subject: Re: [IMail Forum] IMail not using MX record preference cor > rectly? > > > Bill, > > This is why I thought it was necessary, when trying to help Todd, if he > could try and send a log of events. With the log I could use the same > domain.com address and try to 'duplicate' the failure - then perform a > diag against the DNS to ascertain if the problem is/was DNS related. I > personally don't believe it's IMail related - but would tend to lean > toward a DNS issue. > > ~Rick > > Bill Landry wrote: > > > Hmmm, maybe you should go back and re-read Sandy's reply. He never even > > alluded to the MX priority issue you are slamming him about. His reply > was > > limited to the statement that "A" records were taking priority over "MX" > > records, which I have not found to be the case either, since IPSwitch > fixed > > this many versions ago. > > > > Bill > > > > -----Original Message----- > > From: Joe Wolf [mailto:[EMAIL PROTECTED]] > > Sent: Saturday, July 27, 2002 4:20 PM > > To: [EMAIL PROTECTED] > > Subject: Re: Re[2]: [IMail Forum] IMail not using MX record preference > > correctly? > > > > > > Sandy, > > > > You can call it anything you want, fool. IMail has never even CLAIMED to > > use MX priority until 7.1. Here's an exerpt from the 7.1 new features > > propoganda: > > > > "Higher-Performing - SMTP will now cache positive DNS queries and IMail > now > > uses MX record priority when delivering email." > > > > You can read it yourself at the bottom of > > http://www.ipswitch.com/Products/IMail_Server/whatsnew.html > > > > The sad thing is that the line is a lie. My production system has 5 main > > mail servers running Qmail. If I turn the highest priority machine OFF, > and > > then try and send to an address on the Qmail servers from Imail the > message > > will bounce back with that Undeliverable after XX attempts error message > and > > never be delivered. It will not even try to send to the second highest > > priority MX. If I do the EXACT same thing from another Qmail box or > > Sendmail box the message is delivered within seconds (using the exact same > > DNS servers). Its that simple. Try it yourself. I don't keep logs on > > Imail or any other server... against our policy. Don't need any logs to > > prove this one guys, try it yourself and see for yourself. > > > > Before you say something is "nonsense" you should know what you're talking > > about. > > > > Never heard of this before? I've seen various formats of this exact same > > problem every month for YEARS on this very forum. Guess you don't read > > either. > > > > I had really hoped that Imail would become a decent mail server, but > > Ipswitch is more interested in adding features rather than fixing the > basic > > product. > > > > R. Scott Perry, > > > > You claim: "In the years I've been using IMail, I've never heard any > reports > > of it > > using the wrong MX priorities." > > > > How can that be. You've replied to this very problem many times and a few > > THIS MONTH. Here's one of your responses from July 15th: > > > > > >>>Is there any indication that the mail isn't going to the backup MX > >>>records? > >>> > >>Yes, that's why I was asking. The message just gets re-qued, over and > >>over, till after the 20th attempt it bounces. > >> > > > > "That is normal. IMail will re-queue the E-mail after it tries the > primary > > MX record and the secondary are reached." > > > > and > > > > "That would suggest that IMail isn't going handling the situation > > properly"... > > > > Sounds strange to me that you say you've never heard of this problem when > > you've been aware of it for years. > > > > -Joe > > > > > > > > > > ----- Original Message ----- > > From: "Sanford Whiteman" <[EMAIL PROTECTED]> > > To: "Joe Wolf" <[EMAIL PROTECTED]> > > Sent: Saturday, July 27, 2002 3:32 PM > > Subject: Re[2]: [IMail Forum] IMail not using MX record preference > > correctly? > > > > > > > >>>I've been using IMail on a limited basis since the 4.0 versions. I > >>>now run 7.11. No version I have ever had, including 7.11 uses the MX > >>>priority correctly. For some strange reason IMail looks for A > >>>records first > >>> > >>Sorry, but that's nonsense. > >> > >>Show me some logs (from a packet analyzer, preferably) that show IMail > >>preferring A records to MX records when MX records are returned. Don't > >>you think a few (say, hundreds of thousands of) people might have > >>noticed this? > >> > >>As Scott said, *failback* to A records was implemented improperly in > >>several earlier versions, but there is no well-known issue with MX vs. > >>A record priority as you describe. > >> > >>-Sandy > >> > >> > > > ___________________________________________________________________ > Virus Scanned and Filtered by http://www.FamHost.com E-Mail System. > > > Please visit http://www.ipswitch.com/support/mailing-lists.html > to be removed from this list. > > An Archive of this list is available at: > http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > > Please visit the Knowledge Base for answers to frequently asked > questions: http://www.ipswitch.com/support/IMail/ > > --- > [This e-mail was scanned for viruses by Pointshare's Virus Scanning Service] > > Please visit http://www.ipswitch.com/support/mailing-lists.html > to be removed from this list. > > An Archive of this list is available at: > http://www.mail-archive.com/imail_forum%40list.ipswitch.com/ > > Please visit the Knowledge Base for answers to frequently asked > questions: http://www.ipswitch.com/support/IMail/ > Please visit http://www.ipswitch.com/support/mailing-lists.html to be removed from this list. 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