letters, numbers and hyphens, between 2 and 30 characters,

not reserved (admin, abuse, support, rosterr, roster and a few more),

not already used by another workspace. Names are first come, first served across all of Rosterr.

Sender name: how your email shows as the sender. The default is "Username @ Org". You can use {name} and {org}, for example {org} Staff: {name}.

Signature: a closing added under every email. You can write it once and use placeholders filled in from the sender's profile: {name}, {username}, {role}, {department}, {manager}, {org}, {rank}, {timezone} and {inbox}. A line whose details are all empty is left out. Tick Enforce to make it compulsory.

Who can use Mail (lowest rank) (newer Mail): pick a Roblox group rank; only members at or above it get Mail (see "Mail needs a higher rank: why you see it and what an admin can do").

Only inside the workspace: when on, an email can only go to members and shared inboxes of the workspace.

Address list: whether everyone's name appears in the Address list (a member can also hide themselves).

Shared inboxes: create up to 25, and choose who can read each (see "Shared inboxes as a help desk (assign, status, notes)").

Manage mail lets a role change these settings and make shared inboxes without being an admin.

Workspace admins always have Mail, so nobody can lock themselves out.

At most 20 recipients per email, 20,000 characters and a 200-character subject.

Sending to new people per day depends on your plan (see "Mail sending limits: how many people you can email each day").

Each inbox has 100 MB of room for attachments.

Mail: what it is and how email addresses work

Mail sending limits: how many people you can email each day

Shared inboxes as a help desk (assign, status, notes)