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Posted: February 1, 2017

Getting an email certificate error?

Are you getting an error message similar to this: "Certificate not valid -" ?

It's ok, this is an easy fix.  Simply open your outlook email program, click on "file" then click on "Account settings"

In the new window that pops up, highlight your ATT or BellSouth email account and click the "Change" button

Change your Incoming mail server to:

Change your Outgoing mail server to:

email certificate error on and

Click "Next" and "Close" after it's ran a successful test to the mail server


That's it, all fixed.  :)


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Thank you CORE Networks!  The technician you sent was beyond great!  He worked very quickly, was friendly and helpful in explaining what he was doing to fix our issues.  He truly is a master of his field!  Thanks again for everything!

-Alysia Hanks
Office Manager, Lakeway Collision Center
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