How To Set Return to Sending Failure Message for Unrouted Emails in Plesk : DomainRacer
• How to set a return to sending a failure message for unrouted emails in Plesk control panel.
o logged in to Plesk.
o Click Show More to expand the list of options for this domain.
o Then click the Mail Settings option.
o Then click the domain you wish to set the catchall address for.
o Then click the domain you wish to set the catchall address for.
o then select reject the mail back to the sender, option.
o Click ok to save the setting.
• You now know how to set a return to sender failure or reject message for unrouted emails in Plesk.