When I look at my "clean mail" there are failed deliveries with the error "550-Please turn on SMTP Authentication in your mail client" found in the delivery logs. How do I fix this error so I can receive mail?|
This error is a result of a cPanel setting on the mail host. To fix this problem, log into your cPanel, and follow the steps found in this article:Configuring cPanel with SpamHero
last updated Jul 27, 2015
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