Allow admins to create filters for incoming emails, or allow more than one email to post to a category/group.
Sometimes a 1:1 map of an email address to a category or group is inconvenient. Sometimes, a sender will insist on using an email that is not appropriate to your setup (e.g., because its usage pre-dates your setup, or because they stubbornly use the wrong email despite your attempts at regularizing their behavior).
In such cases, two approaches can co-exist:
- Allow multiple emails to arrive at a single place (category or group)
- Allow automatic filtering of incoming email to enable re-categorization based on criteria (Subject, From, etc.)
You have set up a category to receive invoices via
email@example.com, but some providers send their invoices to
firstname.lastname@example.org. Having a filter on the
Subject field + attachment present would ensure all your incoming invoices go to the same place, where your accountant can see them.
email@example.com became way too public, and your contact group starts being the target of spam. You could add a transitional
contact-A4B6C23@example.net address and start moderating everything that comes from the former address. Then you can rotate contact addresses to make it harder for spammers to reach your inbox.
You’re using multiple domains and would prefer that your users coming from
example.org use that domain instead of
wildly-different.example domain that might confuse them. Or you’ve been using two domains and want to consolidate and use only one. Adding
firstname.lastname@example.org to your existing
email@example.com incoming address would solve both cases.