1406 Data too long for column 'mail' at row 1

Hi konforti,

Thank you for this module! I love this flexible, entity and rules based solution!

But I have a problem with log e-mail addresses. If i enter an e-mail address with 35 characters i get:

"PDOException: SQLSTATE[22001]: String data, right truncated: 1406 Data too long for column 'mail' at row 1: INSERT INTO {invites} (invites_token, mail, inviter, invitee, type, created, changed, data) VALUES (:db_insert_placeholder_0, :db_insert_placeholder_1, :db_insert_placeholder_2, :db_insert_placeholder_3, :db_insert_placeholder_4, :db_insert_placeholder_5, :db_insert_placeholder_6, :db_insert_placeholder_7); Array ( [:db_insert_placeholder_0] => ...."

How do we increase the data space of 'mail'?

Thanks a lot,

Marco