To add Fastmail to LocalInbox, open Settings › Privacy & Security in Fastmail, create an app password with access to IMAP and SMTP, then choose Fastmail in LocalInbox and paste it.
Steps
- In LocalInbox, open Settings › Accounts and click Add Account (or use the welcome screen the first time).
- Choose Fastmail and enter your Fastmail address.
- Click Open Fastmail Settings. Under Privacy & Security, create an app password with access to IMAP and SMTP.
- Paste it into LocalInbox and click Add.
Fastmail integrations: app.fastmail.com/settings/security/integrations. LocalInbox's own button opens the same page.
Server settings
| Server | Host name | Port | Security |
|---|---|---|---|
| Incoming (IMAP) | imap.fastmail.com | 993 | SSL/TLS |
| Outgoing (SMTP) | smtp.fastmail.com | 465 | SSL/TLS |
Troubleshooting
LocalInbox says the password is wrong
Use the app password, not the password you sign in to the website with. If you've just made one, copy it again; it's shown only once.
LocalInbox says it can't connect
The message says what to fix: nothing answering at the port, the wrong kind of TLS for the port, an untrusted certificate, an unknown server name, or a timeout. Check the server settings below against the ones LocalInbox filled in.
Questions
Where does LocalInbox keep the password?
In the macOS Keychain on your Mac. It's never written to a file or sent anywhere except your mail server.