https://forums.modx.com/thread/?thread=101353 https://forums.modx.com/thread/101353/eform-just-started-giving-authentication-error-and-not-sending-using-smtp#dis-post-546843
I was just contacted by an old client who said their contact form (eForm) has just started giving Authentication errors.

Main mail: Mailer was unable to send mailThe following From address failed: [email protected] : MAIL not accepted from server,530,5.7.1 Authentication required
SMTP server error: 5.7.1 Authentication required
SMTP server error: 5.7.1 Authentication required

Nothing has changed. We have it set to use secure SMTP in the admin settings under Tools -> Configuration -> User. I have tripled checked all the settings and re-saved the password to make sure it was correct.

Can anyone shed some light on why the form that has being working like clockwork would start having errors?

Many Thanks!]]> zerograv Nov 30, 2016, 07:09 AM https://forums.modx.com/thread/101353/eform-just-started-giving-authentication-error-and-not-sending-using-smtp#dis-post-546843 https://forums.modx.com/thread/101353/eform-just-started-giving-authentication-error-and-not-sending-using-smtp#dis-post-546929
Has anyone had eform stop sending for any reason?]]> zerograv Dec 04, 2016, 07:33 PM https://forums.modx.com/thread/101353/eform-just-started-giving-authentication-error-and-not-sending-using-smtp#dis-post-546929 https://forums.modx.com/thread/101353/eform-just-started-giving-authentication-error-and-not-sending-using-smtp#dis-post-546845
Have you checked if the site has been hacked ? Security issue can be read here

You may also need to read this post in the Forum]]> iusemodx Nov 30, 2016, 08:42 AM https://forums.modx.com/thread/101353/eform-just-started-giving-authentication-error-and-not-sending-using-smtp#dis-post-546845