Spectrum OneClick error: The web server returned error: Message(s) 501 5.1.7 Invalid address
This mail error occurs when trying to set up an email account for use with AlarmNotifier
Release: Any version of Spectrum running on Windows
Component:
This error is coming from the Exchange server.
It can be resolved using the following document:
https://bobcares.com/blog/how-to-fix-email-error-501-571-invalid-address/