If Thunderbird detects that your account has any address books or calendars that can be linked, you should see these options show up under Connect your linked services. When you have set up your mail account and reach the Account successfully created screen, Thunderbird will then search for any other services you can link to for your account.You can sync Fastmail calendars and contacts during initial setup of your account in Thunderbird. You will now be able to choose the address you added to send messages from when you compose new messages in Thunderbird. Click OK to close the account settings dialog. If you want it to be the default, click Set Default then close the identities panel. Fill in Your Name and Email Address with the name and email you want your messages to come from.Click Manage Identities…, then click Add….Click your account name in the sidebar (just above the Inbox). To use a different email address that is not your Fastmail username: If you wish to sync calendars, this can be done now (see below for further instructions). Thunderbird will fetch the list of your folders and start synchronizing your mail. Thunderbird will find the server settings.Ĭlick Done. (What is an app password?)Ĭlick Continue. Password: Your Thunderbird app password.Email address: Your full Fastmail username, including the domain.Your name: Whatever name you want others to see on the email you send.

If it doesn't, select Local Folders in the sidebar on the left, then under the Set up an account heading in the page that appears, click the Email link.įill in your name, email address, and app password: The Set Up an Existing Email Account dialog box will appear. If you use your normal password in Thunderbird, syncing won't work and you will see a password error. Thunderbird needs its own app password to access your information. The general setup instructions are below. You can easily add your Fastmail account to Thunderbird using the setup guide in the Settings → Migration → Apps & Setup guides screen. The instructions and screenshots in this setup guide are for the latest version of Thunderbird, which you can download for free for Windows, macOS, or Linux.

Thunderbird email tutorial