I have gotten email from an external person addressed to an account email@example.com instead of firstname.lastname@example.org.
& is a valid character in email addresses.
It is caught in the catchall and I would like to add it as an alias/nickname of email@example.com
But it isn't allowed.
I'm thinking of putting a forwarding rule in the catchall, but this requires the user to click and approve.
Are there any other options? For instance, the firstname.lastname@example.org routes to email@example.com automatically, but this doesn't seem to do that since both firstname.lastname@example.org and email@example.com already route to firstname.lastname@example.org as nicknames/aliases.