How to set a return to sending failure message for unrouted emails in Plesk

This demo assumes you've already logged in to Plesk.

Now let's learn how to set a return to sender failure, or reject message for unrouted emails.

Click Show More to expand the list of options for this domain.

Then click the Mail Settings option.

That was one way to get to this page...

Another way to get there is to click the Mail tab.

Then click the domain you wish to set the catchall address for.

Then click the domain you wish to set the catchall address for.

... or reject the mail back to the sender, which we'll do now.

This is where you decide what to do with mail for non-existent users.

You can either set a default or catch-all email address...

That's it! Mail sent to non-existent users will now be rejected back to the sender.

This is the end of the tutorial. You now know how to set a return to sender failure, or reject message for unrouted emails in Plesk./