[Users] Delay sending emails by n minutes

[flyingrhino]

> > I'd say, post a request for enhancement on the tracker.
> > 
> > Tracker is there, and requires you to subscribe (but it's free!), just
> > to prove that you're a friendly human fellow user, and no doubt you
> > are, I'd say after reading your posts:
> >   http://www.thewildbeast.co.uk/claws-mail/bugzilla/index.cgi
> 
> Yes, I'll subscribe. If posting it there is the correct place to grab some attention (and probably I'm a +1 on the request) , then I'm in !
> 

Bug #3905

Thanks for the suggestion to report it as an enhancement.