Starting June 2022, Google/Gmail/G Suite accounts will only allow access to IMAP accounts using OAuth. Password-based access is no longer supported by Google.
Gmail IMAP and SMTP servers support authorization via the OAuth 2.0 protocol, which Postbox also supports. If you're receiving notifications about using a less secure application, or simply want to use the latest and greatest security protocol, try upgrading your Postbox Gmail account to OAuth2. It's quick and easy to do!
Note: These instructions are only for Google/Gmail/G Suite accounts that have already been set up within Postbox. If you are setting up a new Gmail account, simply walk through our New Account Wizard and the correct settings will be configured for you.
- Within Postbox, navigate to Options | Preferences > Privacy and then select the checkbox for "Accept cookies from sites."
- Navigate to Options | Preferences > Security > Passwords > Saved Passwords and click the "Show Passwords" button. Take a screenshot of your passwords, so you have them as a backup. Remove all of your Gmail passwords from the Password Manager, then close the window.
- Navigate to Options | Preferences > Accounts. Select the Gmail account and change Authentication to "OAuth2 (Google)." Repeat this step for each of your Gmail accounts.
- Navigate to Options | Preferences > Accounts > Outgoing Servers. Here you will want to edit each Gmail server and change Authentication to "OAuth2 (Google)."
- Once complete, restart Postbox, and it will authenticate with each of your Gmail accounts.
- IMPORTANT! - If using 2-Step Verification, please note that Postbox does not support authentication using the YouTube app. When you reach the 2-Step Verification screen, scroll down and click on the Try another way link, then select either text messaging or the Authenticator app.