Account Name/E-mail Available to Guild Leaders?

When you join a guild, can your guild leader/officers see your e-mail or account name (which is the same thing, I think)?

I noticed that all of your characters belong to the guild once you join: do they see only your character names or is there more information in there?

It is not really important, I am just curious.

Thank you

They only see character name, nothing more. Guild leaders have no more information than members or officers.

^As a guild leader I can confirm this ^