webmail client error Tag

Roundcube SMTP error 250 authentication failed – Here’s how to fix it

by Lakshmi Vijayakumar | Feb 28, 2019 | Latest, Server Administration

Authentication errors are always annoying, especially when you’re sure the logins are correct. One such error in Roundcube is “SMTP error 250 authentication failed”. This usually happens when customers try to send emails from their Roundcube webmail...

Roundcube SMTP error 250 authentication failed – Here’s how to fix it

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