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Outlook 2010 sending error (0x800CCC78)

I have tried the 'outgoing server authentication' as suggested by many answers to the same error several times, but no luck, emails used to send no problem, any other ideas?
 
I have tried solutions from:
http://answers.microsoft.com/en-us/office/forum/office_2010-outlook/unable-to-use-outlook-2010-error-0x800ccc78/2a556e08-757d-418f-95ee-ef78f9ceea67?page=1&tm=1323538570514#footer

&
http://answers.microsoft.com/en-us/office/forum/office_2007-outlook/suddenly-this-am-when-i-try-to-send-an-email-i-get/04431f9d-4a19-4793-bb94-67c6ce2c76a1?tab=AllReplies#tabs

This does not solve the issue, emails sent fine since Outlook 2010 was installed for the last 9 months
Answer
Answer

Try to 'test the account settings' to see if it passes through.

 

Click File > Account Settings > Click the email account > Test account settings.

 

If the test account setting works and you are still not able to send - receive emails, Create new Outlook profile following the steps from the KB below, setup the email account and verify the results:

http://support.microsoft.com/kb/829918

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Question Info

Last updated September 30, 2021 Views 2,393 Applies to: