Activation bounce back: 550 Messages should have one or no To headers, not 2
I’m setting up Buddypress and when I register a new account the activation email keeps bouncing back to the sender address. I get the following error:
SMTP error from remote mail server after end of data:
550 Messages should have one or no To headers, not 2.
The “To” address IS in the “To” field TWICE but I can’t figure out why. I assume that’s why it’s bouncing back. I don’t have any other registration or membership plugins running right now. I am using WP SMTP MAIL to enable me to use Gmail as my sender. It DOES send the test email properly, and only to one address in the “To” field.
Any advice on this?
- You must be logged in to reply to this topic.