

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. That said, however, remember that in general Thunderbird is not the right tool for email marketing (having been created mostly for one-to-one messages and not for mass email sending).īeyond the problems with SMTP servers, Thunderbird can therefore generate other difficulties when it comes to send a newsletter.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. Now, after having clicked OK, Mozilla Thundebird is ready to go. Read our general article about how to configure an SMTP server to know more.

If you’re using Mozilla Thunderbird as a mail client, it’s essential to configure your SMTP settings in order to correctly send emails out.Īn SMTP (Simple Mail Transfer Protocol) server is simply the machine that takes care of the email delivery process: every provider has its own, with a specific name and address.
