MS Outlook 2003/2007/Exchange 2003 requires ipconfig /flushdns to send emails
Posted on 2009-04-20
Here's the scenario:
Various machines across the network, 3 different physical locations, all connected via WAN and LAN. Exchange Server 2003 resides in home office. 50 users spread across the 3 physical locations. Some users are running Office 2003, some Office 2007 (About 50/50). Some users can not send email, it hangs in their outbox unless they close and shut down Outlook (Either 2003 or 2007) and open a command window and running ipconfig /flushdns.
This is an ongoing issue and only affects a few of the users. Others, both Office 2003 and Office 2007 are unaffected and can send emails without a hitch.
Can anyone tell me what to do to fix this permenantly so that the users do not have to keep running ipconfig /flushdns? I'd really rather not have them opening a cmd window 12 times a day.