<div>
Yes this does help. &nbsp;The customer does have approx 12,000 email messages on the Yahoo server, with a bunch of folders. &nbsp;I basically did what you did suggested. &nbsp;I created a backup pst, then I downloaded the email's on their yahoo server, then it &nbsp;populated the MS Exchange Server, but I had to tell MS Exchange not to have a restriction on the mailbox for size, I also told MS Outlook, not to delete from the server, I then made a backup copy of what was downloaded just in case, then I deleted all the email's from the Exchange Mailbox, then I imported the original PST, Problem resolved, thanks for your fast response. &nbsp;I will encourage the customer not be responding to email's on both the MS Outlook and Yahoo, you must do one or the other but not both, as email's won't be in sync. &nbsp;In the near future the all email's will be handled thru the Exchange, thanks a bunch for your help
</div>


<div>
<div class="content wysiwyg-content">
Workstation just recently joined a new domain, Outlook is getting Pop Email's from Yahoo small business email. &nbsp;After joining the Microsoft Windows 2003 domain, Outlook contained orginal email's dated thru today, once I connect the Yahoo Business email, it starts populating her email's from a couple of years ago, 7150 email's are coming down as if not read. &nbsp;The original outlook setup was to keep her email's on the POP server and not to delete the email's. &nbsp;Outlook does have 2 profiles, one is called Outlook and the other is called BACKUP of Outlook. &nbsp;I did remove the password for the user email in the BACKUP of Outlook so that the email's are left in tact. &nbsp;The Yahoo \small Business Email Account has 13 sub folders, and Outlook have 15 sub folders, what can I do to prevent Outlook to receive email's as if new from the past which has already been read at both locations, thanks 
</div>
</div>


Workstation just recently joined a new domain, Outlook is getting Pop Email's from Yahoo small business email.  After joining the Microsoft Windows 2003 domain, Outlook contained orginal email's dated thru today, once I connect the Yahoo Business email, it starts populating her email's from a couple of years ago, 7150 email's are coming down as if not read.  The original outlook setup was to keep her email's on the POP server and not to delete the email's.  Outlook does have 2 profiles, one is called Outlook and the other is called BACKUP of Outlook.  I did remove the password for the user email in the BACKUP of Outlook so that the email's are left in tact.  The Yahoo \small Business Email Account has 13 sub folders, and Outlook have 15 sub folders, what can I do to prevent Outlook to receive email's as if new from the past which has already been read at both locations, thanks 

Yahoo Small Business Email populating Outlook 2003 Incorrectly after workstation joins the domain

Interactions between email servers and clients are governed by email protocols. The three most common email protocols are POP, IMAP and MAPI. Most email software operates under one of these (and many products support more than one).  The correct protocol must be selected, and correctly configured, if you want your email account to work.

Email Protocols

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.