Looking at your last comment, it seems that it's a gmail issue, you tested this with Evolution, Thunderbird and Claws and all of them have the same issue, how this can be an Evolution problem? looks like gmail to me rather, thanks.
** Changed in: evolution (Ubuntu) Status: New => Invalid -- Evolution doesn't send mail with attachments via GMail SMTP https://bugs.launchpad.net/bugs/219054 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs