My suggestion is to add a dialog when the user clicks send (validating the mail) that warns about an empty To: field that this may cause issues for some MTA and/or email clients. This dialog could also suggest adding the sender as the recipient of the To: field. The dialog could then have three buttons: Cancel, Send with sender as recipient, Send. Default being Send with sender as recipient.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/702097 Title: Some versions of Outlook misinterpret mails with only BCC recipients -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs