If your ISP doesn't block DNS requests outside its network, you might want to use root hints instead of forwarders.
Ed Crowley MCITP MCSE+I MCSE+M MCTS MVP "There are seldom good technological solutions to behavioral problems." -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jean-Paul Natola Sent: Wednesday, August 27, 2008 12:31 PM To: Exchange Discussions Subject: RE: Exchange intermittently connecting wrong servers Is there a way to prevent that from happening? In other words- if no MX found then retry later - instead of let me send to the A ip- but the real issue is why can my exchange find the right IP's - Should I attempt to remove the forwarders from my DNS servers as suggested in the other article? -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Chris Scharff Sent: Wednesday, August 27, 2008 12:25 PM To: Exchange Discussions Subject: RE: Exchange intermittently connecting wrong servers Same reason as last time. The IP being used is one of the A records for Earthlink.net; the A record being what would be used if the (optional) Mx records were not returned. -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Jean-Paul Natola Posted At: Wednesday, August 27, 2008 10:05 AM Posted To: swynk Conversation: Exchange intermittently connecting wrong servers Subject: RE: Exchange intermittently connecting wrong servers Its not just that address /ip its happening with different domains as well- What I'm trying to figure is why my Exchange would choose an IP that is not an MX record on the net -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Albert Duro Sent: Wednesday, August 27, 2008 10:49 AM To: Exchange Discussions Subject: Re: Exchange intermittently connecting wrong servers maybe doing a traceroute on 209.86.93.201 might tell you how and why it's going there ----- Original Message ----- From: "Jean-Paul Natola" <[EMAIL PROTECTED]> To: "Exchange Discussions" <[email protected]> Sent: Wednesday, August 27, 2008 6:42 AM Subject: Exchange intermittently connecting wrong servers Hi all, I'm not sure where to start here, but after getting numerous complaints regarding the inability to send mail - I have tracked the source of the problem. For some reason my exchange server randomly decides to send mail to the wrong server - Here's one example; User sends to her earthlink account; connects to 209.86.93.228 result OK 2008-08-26 14:28:49 209.86.93.228 OutboundConnectionResponse SMTPSVC1 FCI-EX - 25 - 250+1kxZxmZz3Nl34g0+Message+accepted+for+delivery 0 SMTP - - 2008-08-26 14:28:49 209.86.93.228 OutboundConnectionCommand SMTPSVC1 FCI-EX - 25 QUIT - 0 SMTP - - 2008-08-26 14:28:49 209.86.93.228 OutboundConnectionResponse SMTPSVC1 FCI-EX - 25 - 221+mx-pigeons.atl.sa.earthlink.net+closing+connection 0 SMTP - - Later on in the day she sends another email; my server decides to connect to 209.86.93.201 - result Not OK 2008-08-26 18:09:26 209.86.93.201 OutboundConnectionResponse SMTPSVC1 FCI-EX - 25 - 550+Authentication+required.+Help+at+http://www.earthlink.net/go/emailse 550+Authentication+tting s 0 SMTP - - Nslookup tells me; mx1.earthlink.net internet address = 209.86.93.226 mx2.earthlink.net internet address = 209.86.93.227 mx3.earthlink.net internet address = 209.86.93.228 mx4.earthlink.net internet address = 209.86.93.229 So I know why its failing - I know what it is going wrong , but WHY is it doing this and how do I correct it Could my ISP's DNS servers be on the fritz? And its not just happening with earthlink- thanks Jean-Paul _________________________________________________________________ List posting FAQ: http://www.swinc.com/resource/exch_faq.htm Web Interface: http://intm-dl.sparklist.com/read/?forum=exchange To subscribe: http://e-newsletters.internet.com/discussionlists.html/ To unsubscribe send a blank email to [EMAIL PROTECTED] Exchange List admin: [EMAIL PROTECTED] To unsubscribe via postal mail, please contact us at: Jupitermedia Corp. 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