Some Google Apps domain require SAML authentication instead of the Google authentication.
To enable SAML authentication, follow the following steps:
- Open Terminal
The the following line and press ENTER:
defaults write com.mailplaneapp.Mailplane SAMLAccounts "email@example.com"
If you have more than account to set, separate them with a comma:
defaults write com.mailplaneapp.Mailplane SAMLAccounts "firstname.lastname@example.org,email@example.com"
- Restart Mailplane to apply the setting
Limitations: There is no automatic sign-in for the accounts listed in SAMLAccounts and you won't get new email notifications.