I've got a small wish request here. Is there any way to improve the texts in error messages in GO? The example I've got in hand now is a user who writes a wrongly formatted mail address. The error message is "Address in mailbox given [faulty@address] does not comply with RFC 2822, 3.6.2.". This user doesn't speak english and has no idea whatsoever what a RFC is, so this really doesn't say anything useful. It really ought to say "The address (faulty@address) is faulty" (but localized) or something like that.