New comment by xelxebar on mblaze repository

https://github.com/leahneukirchen/mblaze/pull/173#issuecomment-631182431

Comment:
Have my eye on this feature. The list of emails I have to reply as is very long and constantly growing. Would it make sense to allow wildcards or regex specifications in `reply-from` and/or `alternative-mailboxes` specifications?

Unfortunately `*` and `/` can technically appear in the local and domain parts, so we can't use an obvious wildcard syntax like `*@example.com` nor a regex syntax like `/.*@example.com/`. Unwinding the address specification in rfc5322 is a bit of a windy path, but it looks like we could get away with using `\` of the `specials` [0]. AFAICT the backslash can't appear anywhere in an address specification so a regex like `\.*@example.com\` should be easily distinguishable and unambiguous.

Thoughts?

[0]:https://tools.ietf.org/html/rfc5322#section-3.2.3