[exim] ${address: foo(comment)@bar.org}

the string expansion operator ${address:

doesn't seem to strip RFC5322 comments (described in section 3.2.2)

https://tools.ietf.org/html/rfc5322#section-3.2.2

An extreme example:

https://tools.ietf.org/html/rfc5322#appendix-A.5

Should it be doing that? (I could write a patch if this is a bug)
Is there some other method for that?

--
When I tried casting out nines I made a hash of it.