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Error: SMTP Error 517

What's Causing This Error

SMTP error code 517 usually occurs when issues with the sender's mail attribute are traditionally found within the Active Directory.

Solution - Here's How To Resolve It

The attributes set within the Active Directory must be valid. Therefore it is vital to ensure that all users (or users facing the issue) contains a valid mail attribute and that there are no invalid characters present within the attributes.

Other Common SMTP Errors (and Solutions)

View all errors

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