Outlook is an email client, which is a program that must be configured by the user to work with your ISP's mail. Everytime you open the client, in your case Outlook, any messages on the mail server will download to the client. The only way to get the messages back into webmail is to forward them to yourself. If you do this, and have a lot of messages, do only a few at a time. To many will be seen as you sending spam. Also, when the messages reappear in webmail, the sender will by you-not the original sender.
The most obvious solution is don't open Outlook.
Another solution, delete the account in Outlook. (which may possibly delete any messages there)
OR: open Outlook, and set it to leave a copy of messages on the server. If Outlook is opened, mail will be downloaded, but as the name implies, a copy will be left for you to access in webmail.
(I don't use Outlook, but every email client has this option. If you choose to do this, go to webmail, and move your inbox messages to a temporary folder so they don't get downloaded) This may be the best option for you if you click on any Mail to: links which require an email client to use.
If no one else uses Outlook on your computer, you can uninstall it. This page will guide you through the removal: (back up your messages first, they will be lost when it's uninstalled)How to Remove Microsoft Outlook
Finally, just to clarify-it is actually Outlook and not Outlook Express? These are 2 different programs, yet many times someone says Outlook, and those attempting to help find out they actually use Outlook Express. If you need more help, please post here and include which version of Outlook you have.
Edited by Queen-Evie, 11 July 2008 - 09:59 PM.