Updating host file
It is common for corporate networks to suffix domains and add search orders to ease local resolution of hosts on the network.
I have noticed some of the applications I use also cache some of these responses, and must ensure they are completely closed before the resolution works properly.
We contacted Appriver to see if they were having issues.Microsoft is conducting an online survey to understand your opinion of the Technet Web site.If you choose to participate, the online survey will be presented to you when you leave the Technet Web site. I then used our RMM, Labtech, to create a script that would run this on XP machines.We ran it and within seconds of it running on the computers, email was working again.