|Error code: 0x800CCC79|
|Description: Unable to relay|
In most cases, this is caused by the fact that the SMTP server requires authentication and the email client is not configured for it.
As per M290808, this may be the effect of a misconfiguration of the Exchange SMTP authentication requirements.
Keywords: error code 0x800CCC79 and SMTP: Google - Bing - Microsoft - Yahoo
Keywords: Unable to relay: Google - Bing - Microsoft - Yahoo
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