Adding "Send As" address in Gmail result in an SMTP DNS error

Question

I want to send mail from my Gmail box (me@gmail.com) that will appear as sent from my Google Apps address (me@example.com).

While setting up the "send as" address, I'm asked to enter my SMTP server, username and password.

I use smtp.example.com with my Google Apps user and password, and I get the following DNS error:

Authentication failed. Please check your username/password.
[Server response: DNS Error: Address resolution of smtp.example.com. failed: Domain name not found code(0) ]

I have MX records set up on my domain host, and they show on Google Apps admin console.

Any idea?

Answer 1

One option that bypasse the problem is to use Gmail SMTP server for the "send as" option.

• You use smtp.gmail.com as server address
• Your gmail email address as username
• The password should be generated by Google as an app password, using the instructions in the link below. It is not your Gmail account password.

This method worked for me: Using Gmail SMTP server