Coming soon
Terms
These terms cover the Functional Mail website and the invited inbox.
Last updated October 14, 2026.
Invitation only
Functional Mail is a mail service of Marcus Facilities LLC. Accounts are for people who have been invited.
Joining the waitlist does not create an inbox, reserve an email address, or promise an invitation. We’ll write to the address you give us if an invitation is available.
An invitation is what opens an inbox. This website does not have a public sign-in. Don’t type your password into a page that claims to be Functional Mail.
Using the site
You can read these pages and join the waitlist with your own name and email address. Please don’t use the form to send someone else’s address, or try to break the site.
The pages
The Functional Mail name, logo, and the words and pictures on this site belong to Marcus Facilities LLC. You’re welcome to look, not to copy the site and pretend it is yours.
Early, and offered as it is
The site may change, go offline for a bit, or stay in early access longer than we hope. It is offered as it is, without a promise that an account will be available on a certain date.
Questions
Email admin@functionalmail.com.