Windows Live Mail

Unable to send with smtp.att.yahoo.com, error ID: 0x800CCC78

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Archived post from November 28, 2014. Product: Windows Live Mail – no longer developed by its maker. Details may be out of date.

Question asked on Nov 28, 2014

Since getting Windows 7 and Windows Live Mail I have been unable to send or reply to emails. Following is the error I receive, I feel sure it is the way the account is set up but I can't find the error.

The message could not be sent because the server rejected the sender's email address. The sender's email address was '*** Email address is removed for privacy ***'.

Subject 'test'
Server Error: 530
Server Response: 530 5.7.1 Authentication required
Server: 'smtp.att.yahoo.com'
Windows Live Mail Error ID: 0x800CCC78
Protocol: SMTP
Port: 465
Secure(SSL): Yes

[Original title: Windows Live Mail]

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