How to match a string like '+447537170394 <sms at aa.net.uk>' in a send hook?

[Chris Green]

On Wed, Sep 25, 2024 at 11:23:41AM +0100, Chris Green wrote:
> On Wed, Sep 25, 2024 at 10:30:33AM +0200, Francesco Ariis wrote:
> > Hello Chris,
> > 
> > Il 25 settembre 2024 alle 08:50 Chris Green ha scritto:
> > > I want to match the following string in a To: address for a send-hook:-
> > > 
> > >     +447537170394 <sms at aa.net.uk>
> > > 
> > > The + and < and > have special meanings (I think) in an RE, is there a
> > > simple way to tell send-hook that this is just a string with no
> > > special meanings at all or am I going to have to escape all the
> > > specials?  If I do need to escape them all what do I actually need to
> > > put?  Is it just:-
> > > 
> > >     '\+447537170394 \<sms\@aa\.net\.uk\>'
> > > 
> > > ... just tried the above, it doesn't match.  So there must be more to
> > > it.
> > 
> > I am sure there is a proper solution, but meanwhile wouldn’t it be
> > good enough to just match 447537170394?
> > Maybe in your case it uniquely identifies your recipient
> 
> OP here.  I think I have found a much more basic problem, I don't
> think a send-hook can change the To: address.
> 
> So, next question (which replaces the first one), how can I change a
> To: header dependent on the contents of the To: header?
> 
> What I am trying to do is to change the destination address when I get
> messages from addresses like '+447537170394 <sms at aa.net.uk>' because
> messages back to that address disappear into a black hole.
> 
To clarify, whhen I get an E-Mail with a From: header like:-

    From: +447537170394 <sms at aa.net.uk>

I want replies (i.e. the To: header) to go to:-

    To: Fred Bloggs <f.bloggs at another.address.co.uk>


I can't seem to get mutt to do this for me, I'm sure it must be
possible and, probably, quite easy.

-- 
Chris Green