Search Again: Re: DNS Problems From: Mark Russon Date: Tuesday, November 9, 1999 Time: 3:09:00 am >At 10:05 AM -0800 11/8/99, Mark Russon wrote: >>Can someone help me? I am having constant "Circular delivery >>problems". My domain is nextnet.com. I was told by the company that >>we bought out mail server from that we don't have a "real" dns >>server. What is he talking about? > >I'm guessing you mean that you have a mail loop. This is almost always caused by a misconfigured primary mail server, though it can also be caused by incorrect DNS settings. > >I checked the DNS records for nextnet.com, and everything looks fine on that end. Your MX record and one of your NS records point to names that resolve to the same address. This indicates that your mail server and your (probably primary) DNS server are running on the same machine. Is this correct? Yes this is correct > >If so, the problem is in your mail server settings. The mail server needs to be configured to accept (not relay) mail for nextnet.com. Also, if you host any other domains, if the MX record with the lowest priority number points to this machine, then the mail server needs to be configured to accept mail for these domains. For a short time, 4 days, I had 2 of the domains being forwarded to another mail server 207.246.235.213 (this other mail server is CommuGate Pro that we are attempting to set up on Mac OS X, but it appears we are having trouble setting it up. Our current mail server is W* 4.0 on a Mac. We were relaying the mail to this new server to see if it worked. Can you tell me if the following would be correct? Our current server is 207.246.235.210. We created the following but it never worked: nextnet.com. NS ns1.nextnet.com. nextnet.com. NS ns2.nextnet.com. nextnet.com. MX 10 mail.nextnet.com. ns1.nextnet.com. A 207.246.235.210 ns2.nextnet.com. A 207.246.235.211 www.nextnet.com. A 207.246.235.210 nextnet.com A 207.246.235.210 mail.nextnet.com A 207.246.235.213 www2.nextnet.com CNAME www.nextnet.com. 210.235.246.207.in-addr.arpa. PTA www.nextnet.com. 210.235.246.207.in-addr.arpa. PTA nextnet.com Not a single message got through. > >I'm curious as to what mail server this is. Given that it appears to be running on the same machine as your primary DNS, which I take to be QuickDNS Pro, I have to conclude that this mail server is running on MacOS. Given this, what DNS server would they have you use? Something like BIND, which doesn't run on MacOS without a BSD wrapper (i.e. MachTen)? Or (shudder) MS DNS, which only runs on WindowsNT? Webstar 4.0 QuickDNS Pro > >QuickDNS Pro is indeed a "real" DNS server, with performance characteristics rivaling that of BIND. In a sense, MacDNS and Nonsequitur (the other commonly-used DNS servers for MacOS) are not fully functional DNS servers. Perhaps the mail server vendor thought you were using MacDNS. The guys that told us that were from CommugatePro. They got into our machine and said that it was the DNS server that was screwing things up. Here is some of the log from their machine: 00:00:26.45 4 DNR-00939(www.stalker.com) request sent to [207.246.235.213] 00:01:01.45 3 DNR-00939(www.stalker.com) time-out 00:01:01.45 3 SMTPI-00463(www.stalker.com) Failed to resolve: DNS transaction timeout. Real address is [216.200.213.114] 00:01:01.49 4 DNR-00940(stalker.com) MX-request 00:01:01.49 4 DNR-00940(stalker.com) request sent to [207.246.235.213] 00:01:08.45 4 DNR-00940(stalker.com) request sent to [207.246.235.213] 00:01:22.45 4 DNR-00940(stalker.com) request sent to [207.246.235.213] 00:01:43.45 4 DNR-00940(stalker.com) request sent to [207.246.235.213] 00:02:11.44 4 DNR-00940(stalker.com) request sent to [207.246.235.213] 00:02:46.48 3 DNR-00940(stalker.com) time-out 00:02:46.48 1 SMTPI-00463([216.200.213.114]) Return-Path 'Philip@stalker.com' rejected: DNS transaction timeout 00:11:34.72 4 DNR-00941(ancmail02.ancestry.com) A-request 00:11:34.72 4 DNR-00941(ancmail02.ancestry.com) request sent to [207.246.235.213] 00:11:34.72 4 DNR-00942(ancmail02.ancestry.com) A-request 00:11:34.72 4 DNR-00942(ancmail02.ancestry.com) request sent to [207.246.235.213] 00:11:41.03 4 DNR-00941(ancmail02.ancestry.com) request sent to [207.246.235.213] 00:11:41.03 4 DNR-00942(ancmail02.ancestry.com) request sent to [207.246.235.213] 00:11:55.04 4 DNR-00941(ancmail02.ancestry.com) request sent to [207.246.235.213] 00:11:55.04 4 DNR-00942(ancmail02.ancestry.com) request sent to [207.246.235.213] 00:12:16.04 4 DNR-00941(ancmail02.ancestry.com) request sent to [207.246.235.213] 00:12:16.04 4 DNR-00942(ancmail02.ancestry.com) request sent to [207.246.235.213] 00:12:44.05 4 DNR-00941(ancmail02.ancestry.com) request sent to [207.246.235.213] 00:12:44.05 4 DNR-00942(ancmail02.ancestry.com) request sent to [207.246.235.213] 00:13:19.05 3 DNR-00941(ancmail02.ancestry.com) time-out 00:13:19.05 3 SMTPI-00464(ancmail02.ancestry.com) Failed to resolve: DNS transaction timeout. Real address is [192.216.182.165] 00:13:19.05 3 DNR-00942(ancmail02.ancestry.com) time-out 00:13:19.05 3 SMTPI-00465(ancmail02.ancestry.com) Failed to resolve: DNS transaction timeout. Real address is [192.216.182.165] 00:13:19.08 4 DNR-00943(myfamily.com) MX-request 00:13:19.08 4 DNR-00943(myfamily.com) request sent to [207.246.235.213] 00:13:19.08 4 DNR-00944(anclist001.ancestry.com) MX-request 00:13:19.08 4 DNR-00944(anclist001.ancestry.com) request sent to [207.246.235.213] 00:13:26.05 4 DNR-00943(myfamily.com) request sent to [207.246.235.213] 00:13:26.05 4 DNR-00944(anclist001.ancestry.com) request sent to [207.246.235.213] 00:13:40.05 4 DNR-00943(myfamily.com) request sent to [207.246.235.213] 00:13:40.05 4 DNR-00944(anclist001.ancestry.com) request sent to [207.246.235.213] 00:14:01.05 4 DNR-00943(myfamily.com) request sent to [207.246.235.213] 00:14:01.05 4 DNR-00944(anclist001.ancestry.com) request sent to [207.246.235.213] 00:14:29.05 4 DNR-00943(myfamily.com) request sent to [207.246.235.213] 00:14:29.05 4 DNR-00944(anclist001.ancestry.com) request sent to [207.246.235.213] 00:15:04.05 3 DNR-00943(myfamily.com) time-out 00:15:04.05 1 SMTPI-00464([192.216.182.165]) Return-Path 'ReminderService@MyFamily.com' rejected: DNS transaction timeout 00:15:04.05 3 DNR-00944(anclist001.ancestry.com) time-out 00:15:04.05 1 SMTPI-00465([192.216.182.165]) Return-Path 'Ancestry_Weekly_Digest@anclist001.ancestry.com' rejected: DNS transaction timeout 00:15:04.90 4 DNR-00945(myfamily.com) MX-request 00:15:04.90 4 DNR-00945(myfamily.com) request sent to [207.246.235.213] 00:15:11.06 4 DNR-00945(myfamily.com) request sent to [207.246.235.213] 00:15:25.06 4 DNR-00945(myfamily.com) request sent to [207.246.235.213] 00:15:46.06 4 DNR-00945(myfamily.com) request sent to [207.246.235.213] 00:16:14.06 4 DNR-00945(myfamily.com) request sent to [207.246.235.213] 00:16:49.05 3 DNR-00945(myfamily.com) time-out 00:16:49.05 1 SMTPI-00465([192.216.182.165]) Return-Path 'ReminderService@MyFamily.com' rejected: DNS transaction timeout 00:32:46.47 4 DNR-00946(www.stalker.com) A-request 00:32:46.47 4 DNR-00946(www.stalker.com) request sent to [207.246.235.213] 00:32:53.15 4 DNR-00946(www.stalker.com) request sent to [207.246.235.213] 00:33:07.16 4 DNR-00946(www.stalker.com) request sent to [207.246.235.213] 00:33:28.15 4 DNR-00946(www.stalker.com) request sent to [207.246.235.213] 00:33:56.15 4 DNR-00946(www.stalker.com) request sent to [207.246.235.213] 00:34:31.17 3 DNR-00946(www.stalker.com) time-out 00:34:31.17 3 SMTPI-00466(www.stalker.com) Failed to resolve: DNS transaction timeout. Real address is [216.200.213.114] 00:34:31.21 4 DNR-00947(stalker.com) MX-request 00:34:31.21 4 DNR-00947(stalker.com) request sent to [207.246.235.213] 00:34:38.17 4 DNR-00947(stalker.com) request sent to [207.246.235.213] 00:34:52.17 4 DNR-00947(stalker.com) request sent to [207.246.235.213] 00:35:13.18 4 DNR-00947(stalker.com) request sent to [207.246.235.213] 00:35:41.17 4 DNR-00947(stalker.com) request sent to [207.246.235.213] 00:36:16.17 3 DNR-00947(stalker.com) time-out 00:36:16.17 1 SMTPI-00466([216.200.213.114]) Return-Path 'Philip@stalker.com' rejected: DNS transaction timeout 00:46:49.36 4 DNR-00948(ancmail02.ancestry.com) A-request 00:46:49.36 4 DNR-00948(ancmail02.ancestry.com) request sent to [207.246.235.213] 00:46:49.36 4 DNR-00949(ancmail02.ancestry.com) A-request 00:46:49.36 4 DNR-00949(ancmail02.ancestry.com) request sent to [207.246.235.213] 00:46:56.21 4 DNR-00949(ancmail02.ancestry.com) request sent to [207.246.235.213] 00:46:56.21 4 DNR-00948(ancmail02.ancestry.com) request sent to [20 Can you figure it out? >____________________________________________________________________ >Chris Buxton cbuxton@menandmice.com >Men & Mice http://www.menandmice.com >Makers of: QuickDNS Pro

Messages In This Thread: DNS problems by Chaz on Aug 24, 1999 at 7:51:00 pm Re: DNS problems by Global Homes Webmaster on Aug 24, 1999 at 8:16:00 pm Re: DNS problems by Chaz on Aug 24, 1999 at 8:35:00 pm Re: DNS problems by Mark Palmer, Pageworks on Aug 24, 1999 at 9:08:00 pm Re: DNS problems by Erich Kaminsky on Aug 26, 1999 at 3:09:00 pm Re: DNS problems by Jona Tallieu (T & T n.v.) on Aug 26, 1999 at 3:20:00 pm DNS Problems by Mark Russon on Nov 8, 1999 at 6:05:00 pm Re: DNS Problems by Men & Mice Support on Nov 8, 1999 at 9:58:00 pm Re: DNS Problems by Mark Russon on Nov 9, 1999 at 3:09:00 am Re: DNS Problems by Men & Mice Support on Nov 9, 1999 at 4:08:00 am Re: DNS Problems by Joakim Jardenberg on Nov 9, 1999 at 10:33:00 am