Assign it.
Never answer twice.
Every email to support@ lands in one team inbox. Give it an owner, and everyone can see who's on it, so nothing slips and nobody replies twice.
One shared inbox for your support@ address. Every email gets an owner, every question gets talked over, every reply goes out in seconds.
No credit card needed · Set up in five minutes
Every email to support@ lands in one team inbox. Give it an owner, and everyone can see who's on it, so nothing slips and nobody replies twice.
Comment and @mention teammates inside the conversation. Your customer never sees it.
Label invoices, share new conversations in turns, and file away newsletters automatically.
Turn quick notes into a warm reply, polish what you wrote, or summarize a long thread. Nothing goes out until you hit send.
First response time, time to close, your busiest hours, and who's carrying the load.
Private by default.Only your workspace sees your email.
Built for the keyboard.Every action has a shortcut. ⌘K finds the rest.
Never miss a mention.Notifications for what's yours, nothing more.
Letterbox only sends the email your team writes, plus a few account messages. Never marketing. Never bulk.
Point your support address at your private Letterbox address. Every email becomes a conversation, threaded with its replies.
Replies go out one at a time, written by your team, from your own support address once your domain is verified.
Besides replies, just invitations from teammates, email confirmations and password resets. No newsletters, no cold email.
Setting up, how email works, and what happens to your data.
Create a workspace and add a mailbox. Letterbox gives you a private forwarding address; set your support@ address to forward there from Gmail, Google Workspace, Microsoft 365 or any provider that forwards mail. Emails start arriving as conversations right away.
No. They keep writing to the address they know, and once your domain is verified, your replies come from it too.
Yes. Invite teammates from Settings. Admins manage mailboxes, rules and settings; everyone works the inbox together.
Never. It only sends the replies your team writes to people who emailed you, plus account email: invitations from teammates, email confirmations and password resets.
Only the members of your workspace. Comments stay internal; your customers only ever see the emails you send them.
Only the conversation someone asks it about, at the moment they click. Admins can turn AI off for the whole workspace.
There's no paid plan yet. Create a workspace and invite your team without a credit card.