Wildcard Sending Permission
Updated Tuesday, October 27, 2020
For small or single-individual organizations it may not make much sense to monitor multiple mailboxes and then respond from individual ones. A single mailbox that has the power to send as anyone else on the same domain may be a better solution.
This is what the Migadu Wildcard Sending option is for. It grants specific mailboxes the super powers to impersonate any address on the same domain. The user however still has to authenticate with the SMTP using the mailbox credentials. Mailbox identities do not inherit this right.
Wildcard rights are not to be considered lightly in larger organizations. An employee could send emails as HR department or CEO etc.
If you use the wildcard permission to invent non-existing addresses, make sure you can receive the replies on them. You will most likely want to configure the wildcard mailbox as recipient of improperly addressed messages.