0x800CCC79

The reason why you are getting the error code:

 

The message could not be sent because one of the recipients was rejected by the server. The rejected e-mail address was 'gamini@email.com'. Subject 'Email Test', Account: 'example.com', Server: 'example.com', Protocol: SMTP, Server Response: '552 too many recipients', Port: 25, Secure(SSL): No, Server Error: 552, Error Number: 0x800CCC79

 

Is due to you having to many recipients in your CC or BCC from your outlook. The maximum you can send CC or BCC is 100. If you try to do more, then you will see the above error.

 

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