Try this
Fixing Hang-up issue with Outlook.
Outlook and Outlook Express hang up on people all the time in fact it is one of the largest Dial up Disconnect problems that occur.
Here is how to fix it for Outlook.
Click Tools > Options.
Click Mail Settings or Mail Setup
Uncheck: Hang up when finished with a manual Send/Receive.
Thanks to customer Dennis who describes another Outlook setting that may cause disconnections (see his comment below). If Outlook is still disconnecting, try this:
Click Tools > Options.
Click Mail Settings or Mail Setup
Uncheck: Automatically dial during a background send/recive.
Fixing Hang-up issue with Outlook.
Outlook and Outlook Express hang up on people all the time in fact it is one of the largest Dial up Disconnect problems that occur.
Here is how to fix it for Outlook.
Click Tools > Options.
Click Mail Settings or Mail Setup
Uncheck: Hang up when finished with a manual Send/Receive.
Thanks to customer Dennis who describes another Outlook setting that may cause disconnections (see his comment below). If Outlook is still disconnecting, try this:
Click Tools > Options.
Click Mail Settings or Mail Setup
Uncheck: Automatically dial during a background send/recive.