The default GPL is free-as-in-speech. You do not have to email for GPL. You have to email for free-as-in-beer. I assume that in case free-as-in-speech is not OK, it is also not a major hurdle to email for the free-as-in-beer version. In case emailing is a major hurdle, maybe you do not really need the free beer part.

Should we stop maintaining the code or get bored mailing free beer licences, we'll very likely change the licence to LGPL or MIT. Until then beer comes via email.