550 Turn on SMTP Authentication in your mail client – Godaddy

Godaddy email exchange will normally set to REMOTE MAIL EXCHANGER

 

If you are using email exchange please do the below steps

  1. Login to your Cpanel Account
  2. Under Email section click Email Routing 550 Turn on SMTP Authentication in your mail client
  3. Select the Domain and Under email routing select Local mail exchanger 550 Turn on SMTP Authentication in your mail client Godaddy

Then your email should start working