# Mailbox

> An email address Warmerly sends from and reads replies from.

Source: https://warmerly.com/docs/help/glossary/mailbox

An email address Warmerly sends from and reads replies from. You either connect one you already have (Gmail or Google Workspace with an app password, Microsoft 365 or Outlook with one-click sign-in, or any provider over IMAP and SMTP), or Warmerly hosts one for you (OneMail). Mailboxes live under **Accounts**. See [Connecting a mailbox](https://warmerly.com/docs/guides/mailbox-connection).

## Where the docs use it

- [My mailbox won't connect: Gmail, Microsoft 365 and other providers](https://warmerly.com/docs/help/mailbox-wont-connect)
- [Frequently asked questions](https://warmerly.com/docs/faq)
- [Deliverability checklist before you launch](https://warmerly.com/docs/guides/deliverability-checklist)
- [Connecting a Mailbox](https://warmerly.com/docs/guides/mailbox-connection)
- [Help Centre](https://warmerly.com/docs/help)

## More from Glossary of Warmerly terms

- [Account](https://warmerly.com/docs/help/glossary/account): On the Accounts page, an "account" is any sending identity: a mailbox or a LinkedIn account.
- [OneMail](https://warmerly.com/docs/help/glossary/onemail): Mailboxes and domains that Warmerly hosts for you, with the DNS and warmup handled.
- [Free mailbox (also called the sandbox mailbox)](https://warmerly.com/docs/help/glossary/free-mailbox-also-called-the-sandbox-mailbox): The mailbox every new account gets at signup, already warming up.