Sending failed:
Your SMTP server does not support PLAIN. Choose a different authentication method. The server responded: 5.7.1 Username and Password not accepted. Learn more at 5.7.1 http://mail.google.com/support/bin/answer.py?answer=14257 f7sm3285391anb.17
The message will stay in the 'outbox' folder until you either fix the problem (e.g. a broken address) or remove the message from the 'outbox' folder.
The following transport was used: Gmail SMTP
Continue sending the remaining messages?