Ordinary I would not post to this list, but as I could not get any useful help out of the two ISPs help desks I called, I will go to those who actually can provide some help. One of our clients is running MDaemon version 2.8.5.0, and has it set up to do a DNS lookup, and send the mail to the appropriate SMTP server as indicated by the MX record. On Thursday we were notified that mail was not getting to Ihug or Tranz Rail. Upon investigating on Friday, I found that they could connect to zuul.ihug.co.nz (I Telneted into port 25 for this diagnosis), but the welcome message "220 mx1.ihug.co.nz ESMTP Exim 3.22 #1 Sat, 11 May 2002 21:29:37 +1200" took between 1 and 1.5 minutes to come up. Connections to mxtrlwn1.tranzrail.co.nz could be made, but I gave up waiting for the welcome message. Connections to other SMTP servers work fine. I have got around the problem by forwarding all their mail to their ISP's SMTP server for distribution, but would like to know what may have caused this so that it can be fixed properly. I have included any info that I thought might be useful below. Any help gratefully received. -Tracy Briscoe -Network Engineer -Patcom Ltd ---------------------------------------------------------------------------- ---------------------------------------------------------------- Windows NT 4.00.1381 running as a proxy server, ie not as their fileserver Running: MDaemon version 2.8.5.0, netmaster 2.4.1, proxy 2 Connecting via ISDN to Xtra route print =========================================================================== Interface List 0x1 ........................... MS TCP Loopback interface 0x2 ...00 90 27 f7 1b 0d ...... Intel(R) PRO PCI Adapter 0x3 ...00 90 bc 01 48 0a ...... SkyMedia-200D Ethernet Adapter. 0x4 ...00 01 f0 ab d6 80 ...... NdisWan Adapter =========================================================================== =========================================================================== Active Routes: Network Destination Netmask Gateway Interface Metric 0.0.0.0 0.0.0.0 210.54.227.49 210.54.227.49 1 100.100.100.0 255.255.255.0 100.100.100.100 100.100.100.100 2 100.100.100.100 255.255.255.255 127.0.0.1 127.0.0.1 1 100.255.255.255 255.255.255.255 100.100.100.100 100.100.100.100 1 127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1 192.168.11.0 255.255.255.0 192.168.11.2 192.168.11.2 2 192.168.11.2 255.255.255.255 127.0.0.1 127.0.0.1 1 192.168.11.255 255.255.255.255 192.168.11.2 192.168.11.2 1 210.54.227.0 255.255.255.0 210.54.227.49 210.54.227.49 1 210.54.227.49 255.255.255.255 127.0.0.1 127.0.0.1 1 224.0.0.0 224.0.0.0 100.100.100.100 100.100.100.100 1 224.0.0.0 224.0.0.0 192.168.11.2 192.168.11.2 1 224.0.0.0 224.0.0.0 210.54.227.49 210.54.227.49 1 255.255.255.255 255.255.255.255 192.168.11.2 192.168.11.2 1 =========================================================================== ipconfig Windows NT IP Configuration Host Name . . . . . . . . . : jdwnt2 DNS Servers . . . . . . . . : 202.27.184.5 202.27.184.3 Node Type . . . . . . . . . : Hybrid NetBIOS Scope ID. . . . . . : IP Routing Enabled. . . . . : Yes WINS Proxy Enabled. . . . . : No NetBIOS Resolution Uses DNS : No Ethernet adapter E100B1: Description . . . . . . . . : Intel(R) PRO PCI Adapter Physical Address. . . . . . : 00-90-27-F7-1B-0D DHCP Enabled. . . . . . . . : No IP Address. . . . . . . . . : 192.168.11.2 Subnet Mask . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . : Primary WINS Server . . . . : 192.168.11.1 Secondary WINS Server . . . : 192.168.11.2 Ethernet adapter sm200dtp4: Description . . . . . . . . : SkyMedia-200D Ethernet Adapter. Physical Address. . . . . . : 00-90-BC-01-48-0A DHCP Enabled. . . . . . . . : No IP Address. . . . . . . . . : 100.100.100.100 Subnet Mask . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . : PPP adapter NdisWan5: Description . . . . . . . . : NdisWan Adapter Physical Address. . . . . . : 00-01-f0-ab-d6-80 DHCP Enabled. . . . . . . . : No IP Address. . . . . . . . . : 210.54.227.49 Subnet Mask . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . : 210.54.227.49 traceroute Tracing route to zuul.ihug.co.nz [203.109.252.10] over a maximum of 30 hops: 1 63 ms 78 ms 78 ms 192.168.9.200 2 187 ms 110 ms 125 ms 192.168.9.3 3 78 ms 78 ms 78 ms 203.96.111.230 4 94 ms 94 ms 78 ms f0-0-0-1.IPNAK1-B3.xtra.co.nz [203.96.111.145] 5 78 ms 78 ms 78 ms ihug1.ape.net.nz [192.203.154.36] 6 79 ms 93 ms 94 ms mx2.ihug.co.nz [203.109.252.10] Trace complete. Tracing route to mxtrlwn1.tranzrail.co.nz [202.135.38.132] over a maximum of 30 hops: 1 78 ms 78 ms 79 ms 192.168.9.200 2 219 ms 203 ms 110 ms 192.168.9.3 3 78 ms 63 ms 78 ms 203.96.111.230 4 78 ms 78 ms 78 ms f0-0-0-1.IPNAK1-B3.xtra.co.nz [203.96.111.145] 5 78 ms 78 ms 78 ms att.ape.net.nz [192.203.154.74] 6 93 ms 79 ms 78 ms auck1br1-fe-4-0-0.nz.prserv.net [152.158.255.222] 7 78 ms 94 ms 93 ms well1br1-0-0.we.nz.prserv.net [152.158.254.85] 8 125 ms 125 ms 109 ms nz-tranz.nz.prserv.net [152.158.254.73] 9 * * * Request timed out. 10 * * * Request timed out. 11 * * * Request timed out. 12 * * * Request timed out. 13 * * * Request timed out. 14 * * * Request timed out. 15 * * * Request timed out. 16 * * * Request timed out. 17 * * * Request timed out. 18 * * * Request timed out. 19 * * * Request timed out. 20 * * * Request timed out. 21 * * * Request timed out. 22 * * * Request timed out. 23 * * * Request timed out. 24 * * * Request timed out. 25 * * * Request timed out. 26 * * * Request timed out. 27 * * * Request timed out. 28 * * * Request timed out. 29 * * * Request timed out. 30 * * * Request timed out. 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