> ## Documentation Index
> Fetch the complete documentation index at: https://docs.custral.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Nylas

> Connect mailboxes for inbound and outbound email.

## What it does

Nylas is the email provider that powers every email channel in Custral. One connected mailbox per user (or per shared inbox) becomes one channel: inbound mail arrives in your Custral inbox automatically, and outbound mail you send from Custral is delivered through your connected mailbox.

## Connect

<Steps>
  <Step title="Open Channels">
    **Settings → Channels → Add Channel → Email**.
  </Step>

  <Step title="Pick a provider">
    Google Workspace, Microsoft 365, IMAP, or Exchange. Nylas supports them all behind the same UI.
  </Step>

  <Step title="Authorize">
    Sign in to your provider and grant the requested scopes (read, send, calendar if you want events).
  </Step>
</Steps>

## Configure

Per-channel:

* **Personal vs shared**: who else on the team can read this mailbox.
* **Default From name** for outbound mail.
* **Recording / archiving** policy.

## Resources synced

| Resource                  | Custral surface                      |
| ------------------------- | ------------------------------------ |
| Inbound message           | A message in the email conversation. |
| Outbound message          | A message in the email conversation. |
| Calendar event (optional) | An event on your calendar view.      |

## Limitations

* The mailbox stays at the provider. Custral does not become the source of truth for mail. Disconnecting removes the channel but leaves your mail with Google / Microsoft / etc.
* Calendar two-way sync is read-only in the current build.

## Troubleshooting

| Symptom                                              | Fix                                                                                                   |
| ---------------------------------------------------- | ----------------------------------------------------------------------------------------------------- |
| Mailbox appears disconnected after a password change | Re-authorize from the channel settings.                                                               |
| Inbound mail is delayed                              | Delivery latency can vary; check the [Nylas status page](https://status.nylas.com) if delays persist. |
| Outbound mail bounces                                | See [Deliverability](/comms/deliverability/overview).                                                 |

## Disconnect

Disconnect from the channel settings. The channel is removed; existing conversations linked to it stay in Custral, but no further mail flows through.

## See also

* [Email overview](/comms/email/overview)
* [Deliverability](/comms/deliverability/overview)


## Related topics

- [Integrations](/integrations/overview.md)
- [Recurring events](/comms/calendar/recurring-events.md)
- [Responding to invites](/comms/calendar/responding-to-invites.md)
- [Calendar](/comms/calendar/overview.md)
- [Run an outbound sequence](/recipes/outbound-sequence.md)