I'm having a similar problem with a Gmail account where Mailplane 2.5.13 goes into a "wrong password" loop. This is how I sidestepped it.
1. When it goes into the endless loop. 2. Open keychain access and look for the Mailplane record for the affected gmail account. 3. The password in that record should be your Gmail Application Specific password. 4. Change it to your normal Gmail password. 5. Click "Save Changes" -- You received this message because you are subscribed to the Google Groups "mailplaneapp" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/mailplaneapp. For more options, visit https://groups.google.com/groups/opt_out.
