Mailboxes & aliases

Every address on a workspace domain is a mailbox. Most belong to members — one per person per verified domain — but members can add personal aliases, and admins can create group addresses like team@ that deliver to many people.

Member mailboxes

• Every member gets a mailbox on the workspace subdomain when they join, and on the custom domain automatically when it verifies.
• A member’s primary address is their original one on the default domain — it’s their login identifier and can’t be removed.

Address format

By default, new members pick their own address, availability-checked as they type. An admin can instead set a workspace address format — first.last, f.last, or first.l — in workspace settings, so every invitee’s address is derived from their name automatically and the roster stays consistent.

Personal aliases

Members can claim extra addresses for themselves — jesse@ alongside jesse.lovelace@ — under Settings → Profile → Email aliases:

1. Choose Add alias and type the address. Availability is checked live.
2. If the workspace has more than one verified domain, pick which domain the alias goes on.

Aliases deliver to the member’s own inbox, and can be selected as the From address when composing. Members can remove their own aliases (except the primary).

Notes for admins:

• Role-style local parts — admin, support, billing, sales, hello, info, team, and similar — are reserved: members can’t self-claim them. They’re meant for group addresses (below).
• A workspace toggle in the Domains section can disable new alias claims. Existing aliases keep delivering; the toggle only stops new ones.
• An address an admin disabled can’t be re-claimed by its former owner.

Group addresses

A group can claim an address on a verified domain — team@yourcompany.com — that fans mail out to every group member’s inbox. Delivered messages show a “via group” chip so recipients know how it reached them.

• Internal groups accept mail from your own domains only, and members can send as the group address. Reserved local parts like support@ are claimable here — that’s what they’re reserved for.
• External groups accept mail from anyone (spam-filtered) and can include outside email addresses as members, who receive copies with working reply and unsubscribe behavior.

Groups are managed by admins (and per-group managers) in Settings.

Undelivered mail

Mail sent to a non-existent address on your domain isn’t bounced into the void — it’s held in the admin-only Undelivered view (in Settings → Domains) for 30 days. For each held message you can:

• Create the address it was sent to (as a mailbox, alias, or group address), then deliver it, or
• Deliver anyway to an existing mailbox.

This makes a typo’d address or a not-yet-invited teammate a recoverable event instead of lost mail.

Note

Removing an address never deletes mail. Mailboxes are disabled, not destroyed — the messages they received stay in place.