That looks correct. Be sure to flush dns on the machine doing the lookup. To be sure you should first do an nslookup on the domain's MX and make sure you get mail.imcu.com
nslookup Set type=MX Imcu.com That should return mail.imcu.com Then check the A record for mail.imcu.com and you should be good to go. From: itli...@imcu.com [mailto:itli...@imcu.com] Sent: Monday, October 29, 2012 10:09 AM To: NT System Admin Issues Subject: RE: DNS? I'll recycle the dnscache and post my internal DNS records here to make sure I am doing it correctly. New Primary Zone IMCU.COM imcu.com A 12.145.145.177.176 imcu.com MX mail.imcu.com mail.imcu.com A 10.0.50.4 (((((internal address)))))) www.imcu.com<http://www.imcu.com> A 12.145.177.176 (((((external address for managed website)))))) board.imcu.com A 10.0.10.21 (((((internal address)))))) Should that be all that I need? I have vpn.imcu.com, ftp.imcu.com<ftp://ftp.imcu.com> but they are programmatically only accessible through the firewall so outside in only. After the recycle of dnscache I should be able to do an nslookup for mail.imcu.com and get the ip 10.0.50.4 just like in my hosts file(Which I have commented out until after this experiment works or fails) Thanks From: Kennedy, Jim [mailto:kennedy...@elyriaschools.org]<mailto:[mailto:kennedy...@elyriaschools.org]> Posted At: Monday, October 29, 2012 8:18 AM Posted To: itli...@imcu.com<mailto:itli...@imcu.com> Conversation: DNS? Subject: RE: DNS? Did you also add an MX record for that domain pointing at mail.imcu.com? Most MTA's will fall back to the A record for the domain, so you could also put up an A record for imcu.com. But I wouldn't count on that. Exchange didn't until 2007 or so. From: itli...@imcu.com<mailto:itli...@imcu.com> [mailto:itli...@imcu.com] Sent: Sunday, October 28, 2012 1:50 PM To: NT System Admin Issues Subject: DNS? I have added a new Forward lookup zone for IMCU.COM on my local active Directory. I have added an 'a' record for 10.0.50.4 for mail.imcu.com in that zone. I do not resolve the mail to the ip. If I add that record in my hosts file I can browse it easily. What is wrong in my DNS set up? Server 2003 active directory. ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com<mailto:listmana...@lyris.sunbeltsoftware.com> with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com<mailto:listmana...@lyris.sunbeltsoftware.com> with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com<mailto:listmana...@lyris.sunbeltsoftware.com> with the body: unsubscribe ntsysadmin ~ Finally, powerful endpoint security that ISN'T a resource hog! ~ ~ <http://www.sunbeltsoftware.com/Business/VIPRE-Enterprise/> ~ --- To manage subscriptions click here: http://lyris.sunbelt-software.com/read/my_forums/ or send an email to listmana...@lyris.sunbeltsoftware.com with the body: unsubscribe ntsysadmin
