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Windows Live Mail

Windows Live Mail Error0x800CCCoB

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Archived post from May 19, 2014. Product: Windows Live Mail – no longer developed by its maker. Details may be out of date.

Question asked on May 19, 2014

Windows Live Mail has recently stopped sending e-mails, leaving them in the Outbox. I receive the following error message every time.

An unknown error has occurred.

Subject 'Test'
Server: 'smtp.ox.ac.uk'
Windows Live Mail Error ID: 0x800CCC0B
Protocol: SMTP
Port: 25
Secure(SSL): Yes

Following advice I have found elsewhere, I have tried:

  • changing the outgoing port from 25 to 465
  • changing the outgoing port from 25 to 587
  • repairing Windows Live Mail
  • removing and the reinstalling my account
  • checking that the "my server requires authentication" box is ticked

All this has been to no avail.

Any further suggestions much appreciated.

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