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Old 07 Jun 2022, 18:34
RichieBoy67's Avatar
RichieBoy67 RichieBoy67 is offline
 
Join Date: Apr 2004
Real name: Richie
Error when doing email test

This client has been with me for years and all of sudden email stopped sending. She is using an outlook smpt. Doing the diagnostic got this error..

PHP User Warning: 421 Authorization to the SMTP server failed in ..../includes/class_mail.php on line 715

Is this just an authentication error with their username or password? They are saying they haven't changed it.

Thanks
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