I know how to set Outlook Express to leave a copy of message on server. How do I make sure my Pearl will leave a copy of message on server. I lost some emails from my server last week and I'm trying to see if the Pearl deleted them.

If you use BIS login to your BIS account and make sure you've checked to leave message on server, thus you receive your messages on your BB and you email client.

I'm not using Blackberry email, I am using a "push" email from my Outlook Express. Does that mean it does not ever take the message off the server?

^ why, use BIS, it works better and you dont have to leave your pc on.

I probably mis spoke. I don't have to have my computer on. The email comes from Comcast. I just want to make sure that if I delete on the BB that I do not delete from the server so that I can check on my Outlook Express desktop later.