Mail clients like Outlook, Thunderbird, etc, make communication easier.
At times, these email clients throw up errors like “550 5.7.1: authentication required” resulting in email failure.
Email users will be confused when they can’t figure out the exact reason for the auth failure.
That’s why we get frequent requests from customers to solve mail errors as part of our Server Management Services.
Today we’ll see the error in detail and discuss how our Support Engineers fix this error.