Just like wildcard domains, there is a technique exists for routing mails send to non-existing email accounts to a legitimate email account situated in a particular domain. This method can generally be called as Wildcard E-mail.
Suppose a client open up a ticket where he is requested to set a wilcard email to firstname.lastname@example.org, where this email account is an existing one in his domain. And he wants all mails sending to email@example.com(a non existing account and the “*” could be anything) would be delivered to firstname.lastname@example.org.
The above request can be fulfilled by setting the following Account Level Filtering rule.
Put a Filter name as ‘wildcard’ or something identifiable name
Then Rule as, “To <–> begins” with
keyword as ‘wild’ ( where ‘wild’ here means any non existing email accounts starting with that term, ie email@example.com, the client wanted here)
Actions, “Redirect to email” <—> “firstname.lastname@example.org”
You are done!!!
From now onwards mails sending to email@example.com, ie wild1, wild123, wild*** etc would be delivered to firstname.lastname@example.org.