# ActiveSync Access

> Enable ActiveSync access to mailbox.

Enable ActiveSync access to mailbox.

[Adding a baseline](https://docs.octiga.io/baselines/adding-a-baseline/) — Add, configure or remove a single baseline on a tenant, a user or a group, without deploying a whole scheme.

## Configure it

This baseline applies per user, through a user-level scheme or an Azure group rather than to
the tenant as a whole.

1. Add it directly to a user or an Azure group ([Adding a baseline](https://docs.octiga.io/baselines/adding-a-baseline/)), or
   bundle it into a user-level scheme and deploy that to many users or groups at once
   ([Deploying a scheme](https://docs.octiga.io/baselines/deploying-a-scheme/)). See [Groups and priority](https://docs.octiga.io/baselines/groups-and-priority/) for how
   Octiga resolves which value a user gets when a Direct value, a scheme and a group all
   supply one.
2. Leave **ActiveSync access** set to On. It's the only setting on this baseline, and it
   controls whether the mailbox accepts Exchange ActiveSync connections: the protocol
   most native phone mail apps (and some third-party clients) use to sync mail,
   contacts and calendar to a mobile device.
3. Save. With **Auto-remediation** on, Octiga switches ActiveSync back on whenever it's
   disabled for a user the baseline applies to. The user's phone then reconnects and
   starts syncing again on its own; nothing else changes for them.

## Check it worked

Passing means ActiveSync access is enabled for the mailbox. To confirm it in the Exchange
admin centre, go to **Recipients → Mailboxes**, select the user and open
**Manage email apps settings**, where it appears as "Mobile (Exchange ActiveSync)". On the user roster or a
group's member list, Passing shows as a green dot for this baseline; Deviated (red) means
it's currently off; Excluded (grey) means the user or tenant isn't licensed for Exchange
Online. A user with access off finds their phone's native mail app stops syncing until it's
turned back on.

**Doing this for every tenant?** Step through the deploy wizard to apply a scheme to a tenant, groups or users, and see what Managed and Direct do at deploy time. [Deploying a scheme](https://docs.octiga.io/baselines/deploying-a-scheme/)