The error number is as above: 0x800CCC79

The rejected e-mail address was 'xxxxx@xxxxxx'. Subject 'xxxxx',
> Account: 'smpt.xxxxx.com', Server: 'smpt.xxxxx.com',
> Protocol: SMTP, Server Response: '554 <xxx@xxxxxx>: Relay access
> denied', Port: 25, Secure(SSL): No, Server Error: 554, Error Number:
> 0x800CCC79


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alan0874