Say you’ve got two POP email accounts configured in Outlook. One of these accounts is active and working, but your other one is deactivated. As a result, when you do a Send/Receive, Outlook will still attempt to send and receive emails from this second account causing several error dialog boxes to appear. To stop this from happening, there’s a quick and easy fix.
Click on Send/Receive menu
Under the Send/Receive command group, click on the "Send/Receive Groups" button
In the drop down menu that appears, click on "Define Send/Receive Groups"
In the dialog box that opens, click on the Edit button.
In the next dialog box, you shall see all of the email accounts added to your MS Outlook. Please locate the one that is inactive, then one you want to exclude in the Send/Receive process.
When found, click on that email account in the left panel, and then click on uncheck or untick the option that says "Include the selected account in this group".
Then click on OK button to close the dialog box.
Click on Close.
Congratulations! The next time that you do a send/receive, Outlook will exclude the email account you already excluded.
The process is slightly different in Outlook 2013, but accomplishes the same thing.
Click the Send / Receive tab, in the Send & Receive group, click Send/Receive Groups, and then click Define Send/Receive Groups.
Click All Accounts.
Click the account you want to remove and uncheck the Receive Mail Items option.