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Try setting the local user account to local admin and see if that fixes the problem.
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Try setting the local user account to local admin and see if that fixes the problem.

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I have a user that when you send and email to them the message states their mailbox is full and can't receive messages. I have tried to increase her mailbox size in AD and that didn't seem to work. Here is the return message-<br />
Your message did not reach some or all of the intended recipients. <br />
<br />
Subject: test <br />
Sent: 11/19/2008 10:14 AM <br />
<br />
The following recipient(s) could not be reached: <br />
<br />
&nbsp; Kelly Teno on 11/19/2008 10:12 AM<br />
&nbsp; The message could not be delivered because the recipient's mailbox is full.<br />
&nbsp; &lt;FCCSRV.fccdomain.local #5.2.2&gt; 
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I have a user that when you send and email to them the message states their mailbox is full and can't receive messages. I have tried to increase her mailbox size in AD and that didn't seem to work. Here is the return message-
Your message did not reach some or all of the intended recipients. 

Subject: test 
Sent: 11/19/2008 10:14 AM 

The following recipient(s) could not be reached: 

  Kelly Teno on 11/19/2008 10:12 AM
  The message could not be delivered because the recipient's mailbox is full.
  <FCCSRV.fccdomain.local #5.2.2> 

I have an SBS 2003 box that has a mailbox problem with only 1 user

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.