<div>
I've requested that this question be deleted for the following reason:<br />
<br />
Staff found solution 
</div>


I've requested that this question be deleted for the following reason:

Staff found solution

<div>
<div class="content wysiwyg-content">
Exchange 2010 can RX &amp;&nbsp;TX mail in house and send externally but can not receive external email
</div>
</div>


Exchange 2010 can RX & TX mail in house and send externally but can not receive external email

Mailbox unavailable. The server response was: 4.3.2 try again later

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.