R U changing your DNS provider for the zone? If that is the case, then you can have 24 to 48 hours of downtime. Move to your new DNS provider before moving locations...
if you are just changing the records then it usually happens in 24 to 48 hours. I always just go in 24 hours before and put the new IP as the MX 10 and leave the current as MX 20 When the cutover happens email should transparently flow without issues, and then I just go remove the secondary(Old location) Changing hostnames is usually the most problematic as there is no way for those to rollover seamlessly and usually only take a few hours...the TTL suggestion will help with this tremendously. Greg From: Debashish Basak [mailto:dba...@pycon.com] Sent: Thursday, February 26, 2009 3:25 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 ~ Ninja Email Security with Cloudmark Spam Engine Gets Image Spam ~ ~ http://www.sunbeltsoftware.com/Ninja ~
