From Mailbird -- after the account has already setup:
- Click on the 3-Lines/Hamburger Menu
- Click on Settings
- Click on Accounts
- Under Accounts
- Click on the Account to Edit
- Click on Edit
- Check against this image:
- Click on Edit Identity and outgoing server
- Check against this image:
- Click Test Connection to test.
- Click OK to save.
- Click OK to save.
