The new integration enables users to use the standard (RFC-5322 compliant) ID of the selected email to construct
hook://file/ URLs, instead of using the
fmail:// URL scheme. That way, fmail users can email their colleagues links to emails that they can open with a large variety of Mac apps (and soon on iOS). Similarly, fmail users are now able to receive and open
hook://email/ links received from users of Mail.app, Airmail, MailMate, and other email apps.
Using the old fmail integration
If you’d rather continue using fmail:// URIs, then
1. open Hook’s preferences
2. select the Script Editor tab
3. select the fmail item on the left side of the window.
4. click on the “Get Address”.
5. paste the following text in the field and click “Save”.
tell application "FMail" set email_address to getAddress end tell tell application "System Events" to tell process "FMail" set email_title to name of window 1 end tell return "[" & email_title & "](" & email_address & ")"
The fmail developer has published this page on Hook.