I am just now configuring Mandrill and I think I am doing everything I am supposed to do in both my Domain name server, my cPanel and inside mandrel to get it all working right. As far as I can see I have done everything correctly but when I open up the Mandrill tab in the newsletter plugin on my WP panel and under the tab called SMTP I click the “send a message to this email” button I get the error message:
SMTP server error: 4.7.1 : Relay access denied
What to do?