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I tested multiple options to sync, didn't know where it happened, looks like POP as you guys pointed, thanks!!!
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I tested multiple options to sync, didn't know where it happened, looks like POP as you guys pointed, thanks!!!

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I was configuring my email as imap in outlook, think it downloaded emails from server and purged emails on server. Is this default action in outlook? I can't remember, was long time ago I used &nbsp;imap. I don't know why outlook doesn't give warning about it. <br />
<br />
Outlook 2003<br />
exchange server 2003. <br />
<br />
Is there a way to put back those emails to server? I have too many folders which may take time to go through each folder to move.
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I was configuring my email as imap in outlook, think it downloaded emails from server and purged emails on server. Is this default action in outlook? I can't remember, was long time ago I used  imap. I don't know why outlook doesn't give warning about it. 

Outlook 2003
exchange server 2003. 

Is there a way to put back those emails to server? I have too many folders which may take time to go through each folder to move.

imap in outlook

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.

Outlook

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

An email client, email reader or more formally mail user agent (MUA) is a computer program in the category of groupware environments used to access and manage a user's email. A web application that provides message management, composition, and reception functions may internally act as an email client; as a whole, it is commonly referred to as webmail. Likewise, email client may be referred to a piece of computer hardware or software whose primary or most visible role is to work as an email client. Email clients can also have other systems, like calendars, notes and contact managers.