Ask the Expert

How can I switch my primary and secondary Internet domains?

I have registered two Internet domains in my company -- and I created a global domain record -- as the primary and as the secondary. Users receive mail through both addresses and

But when I change the order to make the primary and the secondary,'s email is being blocked. The error says "unable to relay mail." is not an external domain.

I need to migrate all users to and secondary as
It sounds like some of your relay fields are not set up completely. Check your server configuration document. Wherever you see in relay fields, you should add

This was first published in June 2003

There are Comments. Add yours.

TIP: Want to include a code block in your comment? Use <pre> or <code> tags around the desired text. Ex: <code>insert code</code>

REGISTER or login:

Forgot Password?
By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy
Sort by: OldestNewest

Forgot Password?

No problem! Submit your e-mail address below. We'll send you an email containing your password.

Your password has been sent to: