You should notify the exiting provider in advance that they will no longer be authoritative for that zone after the cutover. If you don't do that, their DNS servers will continue to provide the wrong information to any of their clients using those servers.
________________________________ From: Debashish Basak [mailto:dba...@pycon.com] Sent: Thursday, February 26, 2009 2:44 PM To: MS-Exchange Admin Issues Subject: RE: Help in Moving over MX record from one provider to another First of all, thanks for the info to Roger Wright and Rob Campbell for the suggestions. I will keep them in mind. As far as changing the DNS and MX records do I just cancel the zone file with the present provider and request for creation of a new zone file with the new provider? From: Campbell, Rob [mailto:rob_campb...@centraltechnology.net] Sent: Thursday, February 26, 2009 12:39 PM To: MS-Exchange Admin Issues Subject: RE: Help in Moving over MX record from one provider to another You can minimize the delivery delays if you cut back on the ttl's on the existing DNS records a day or two in advance of the changeover. Worst case scenario is that some DNS servers will have the old information cached, and and mail server that uses those records will not be able to contact your mail server on the first delivery attempt. Those emails should get queued, and by the time the next retry attempt rolls around the ttl's will have expired, they'll get the right information on the second attempt. ________________________________ From: Debashish Basak [mailto:dba...@pycon.com] Sent: Thursday, February 26, 2009 2:25 PM To: MS-Exchange Admin Issues Subject: Help in Moving over MX record from one provider to another Hello All, We are in the process of moving to a new location. The present internet provider is being changed to a new provider. Can someone who has gone through this advice as the best way to change the following: DNS Addresses MX record Will there be a downtime when this change happens? Any advice will be helpful. Thanking you and with Best Wishes, Debashish ************************************************************************************************** Note: The information contained in this message may be privileged and confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by replying to the message and deleting it from your computer. ************************************************************************************************** ************************************************************************************************** Note: The information contained in this message may be privileged and confidential and protected from disclosure. If the reader of this message is not the intended recipient, or an employee or agent responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by replying to the message and deleting it from your computer. ************************************************************************************************** ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ ~ http://www.sunbeltsoftware.com/Ninja ~
