---
title: "Integrations - Microsoftexchangeonprem"
url: "https://docs.unified.to/integrations/microsoftexchangeonprem"
description: "Build Microsoft Exchange (on-prem) integrations faster with our Unified API — Calendar & Meetings data, API key, real-time sync."
date: "2026-10-23T21:37:31.536Z"
updated: "2026-10-23T21:37:31.536Z"
---
![](https://api.unified.to/docs/images/microsoftexchangeonprem.png)

# Microsoft Exchange (on-prem) integration

[Back to integrations](https://docs.unified.to/integrations.md)

#### Overview

Company website:

<https://www.microsoft.com/en-us/microsoft-365/exchange/email>

Integration launch date:

October 16, 2026

API Categories:

[Calendar & Meetings](https://docs.unified.to/calendar/overview.md)[CRM](https://docs.unified.to/crm/overview.md)[Messaging](https://docs.unified.to/messaging/overview.md)[Passthrough](https://docs.unified.to/passthrough/overview.md)

API Authorization:

 EWS URL / Username / Password

#### CALENDAR CALENDAR

End-API object:

 folder

Unified API Methods:

[List](https://docs.unified.to/calendar/calendar/List%5Fall%5Fcalendars.md)[Get](https://docs.unified.to/calendar/calendar/Retrieve%5Fa%5Fcalendar.md)[Create](https://docs.unified.to/calendar/calendar/Create%5Fa%5Fcalendar.md)[Update](https://docs.unified.to/calendar/calendar/Update%5Fa%5Fcalendar.md)[Remove](https://docs.unified.to/calendar/calendar/Remove%5Fa%5Fcalendar.md)

List options:

limitoffset

Readable fields:

[id](https://docs.unified.to/calendar/calendar/model.md)[name](https://docs.unified.to/calendar/calendar/model.md)

Writable fields:

[name](https://docs.unified.to/calendar/calendar/model.md)

 required fields 

#### CALENDAR EVENT

End-API object:

 calendaritem

Unified API Methods:

[List](https://docs.unified.to/calendar/event/List%5Fall%5Fevents.md)[Get](https://docs.unified.to/calendar/event/Retrieve%5Fan%5Fevent.md)[Create](https://docs.unified.to/calendar/event/Create%5Fan%5Fevent.md)[Update](https://docs.unified.to/calendar/event/Update%5Fan%5Fevent.md)[Remove](https://docs.unified.to/calendar/event/Remove%5Fan%5Fevent.md)

Webhooks:

 Virtual Native

List options:

calendar\_idend\_ltlimitoffsetstart\_gteupdated\_gte

Readable fields:

[attendees](https://docs.unified.to/calendar/event/model.md)[calendar\_id](https://docs.unified.to/calendar/event/model.md)[created\_at](https://docs.unified.to/calendar/event/model.md)[end\_at](https://docs.unified.to/calendar/event/model.md)[has\_conference](https://docs.unified.to/calendar/event/model.md)[id](https://docs.unified.to/calendar/event/model.md)[is\_all\_day](https://docs.unified.to/calendar/event/model.md)[is\_free](https://docs.unified.to/calendar/event/model.md)[is\_private](https://docs.unified.to/calendar/event/model.md)[location](https://docs.unified.to/calendar/event/model.md)[notes](https://docs.unified.to/calendar/event/model.md)[organizer](https://docs.unified.to/calendar/event/model.md)[recurrence](https://docs.unified.to/calendar/event/model.md)[start\_at](https://docs.unified.to/calendar/event/model.md)[status](https://docs.unified.to/calendar/event/model.md)[subject](https://docs.unified.to/calendar/event/model.md)[updated\_at](https://docs.unified.to/calendar/event/model.md)

Writable fields:

[attendees](https://docs.unified.to/calendar/event/model.md)[calendar\_id](https://docs.unified.to/calendar/event/model.md)[end\_at](https://docs.unified.to/calendar/event/model.md)[is\_all\_day](https://docs.unified.to/calendar/event/model.md)[is\_free](https://docs.unified.to/calendar/event/model.md)[is\_private](https://docs.unified.to/calendar/event/model.md)[location](https://docs.unified.to/calendar/event/model.md)[notes](https://docs.unified.to/calendar/event/model.md)[recurrence](https://docs.unified.to/calendar/event/model.md)[send\_notifications](https://docs.unified.to/calendar/event/model.md)[start\_at](https://docs.unified.to/calendar/event/model.md)[subject](https://docs.unified.to/calendar/event/model.md)

#### CRM CONTACT

End-API object:

 contact

Unified API Methods:

[List](https://docs.unified.to/crm/contact/List%5Fall%5Fcontacts.md)[Get](https://docs.unified.to/crm/contact/Retrieve%5Fa%5Fcontact.md)[Create](https://docs.unified.to/crm/contact/Create%5Fa%5Fcontact.md)[Update](https://docs.unified.to/crm/contact/Update%5Fa%5Fcontact.md)[Remove](https://docs.unified.to/crm/contact/Remove%5Fa%5Fcontact.md)

Webhooks:

 Virtual

List options:

limitoffsetupdated\_gte

Readable fields:

[address](https://docs.unified.to/crm/contact/model.md)[company](https://docs.unified.to/crm/contact/model.md)[created\_at](https://docs.unified.to/crm/contact/model.md)[department](https://docs.unified.to/crm/contact/model.md)[emails](https://docs.unified.to/crm/contact/model.md)[first\_name](https://docs.unified.to/crm/contact/model.md)[id](https://docs.unified.to/crm/contact/model.md)[last\_name](https://docs.unified.to/crm/contact/model.md)[link\_urls](https://docs.unified.to/crm/contact/model.md)[name](https://docs.unified.to/crm/contact/model.md)[telephones](https://docs.unified.to/crm/contact/model.md)[title](https://docs.unified.to/crm/contact/model.md)[updated\_at](https://docs.unified.to/crm/contact/model.md)

Writable fields:

[address](https://docs.unified.to/crm/contact/model.md)[company](https://docs.unified.to/crm/contact/model.md)[department](https://docs.unified.to/crm/contact/model.md)[emails](https://docs.unified.to/crm/contact/model.md)[first\_name](https://docs.unified.to/crm/contact/model.md)[last\_name](https://docs.unified.to/crm/contact/model.md)[link\_urls](https://docs.unified.to/crm/contact/model.md)[name](https://docs.unified.to/crm/contact/model.md)[telephones](https://docs.unified.to/crm/contact/model.md)[title](https://docs.unified.to/crm/contact/model.md)

#### MESSAGING CHANNEL

End-API object:

 folder

Unified API Methods:

[List](https://docs.unified.to/messaging/channel/List%5Fall%5Fchannels.md)[Get](https://docs.unified.to/messaging/channel/Retrieve%5Fa%5Fchannel.md)[Create](https://docs.unified.to/messaging/channel/Create%5Fa%5Fchannel.md)[Update](https://docs.unified.to/messaging/channel/Update%5Fa%5Fchannel.md)[Remove](https://docs.unified.to/messaging/channel/Remove%5Fa%5Fchannel.md)

List options:

limitoffsetparent\_id

Readable fields:

[has\_subchannels](https://docs.unified.to/messaging/channel/model.md)[id](https://docs.unified.to/messaging/channel/model.md)[name](https://docs.unified.to/messaging/channel/model.md)[parent\_id](https://docs.unified.to/messaging/channel/model.md)

Writable fields:

[name](https://docs.unified.to/messaging/channel/model.md)[parent\_id](https://docs.unified.to/messaging/channel/model.md)

 required fields 

#### MESSAGING MESSAGE

End-API object:

 message

Unified API Methods:

[List](https://docs.unified.to/messaging/message/List%5Fall%5Fmessages.md)[Get](https://docs.unified.to/messaging/message/Retrieve%5Fa%5Fmessage.md)[Create](https://docs.unified.to/messaging/message/Create%5Fa%5Fmessage.md)[Update](https://docs.unified.to/messaging/message/Update%5Fa%5Fmessage.md)[Remove](https://docs.unified.to/messaging/message/Remove%5Fa%5Fmessage.md)

Webhooks:

 Virtual Native

List options:

channel\_idlimitoffsetparent\_idupdated\_gte

Readable fields:

[attachments](https://docs.unified.to/messaging/message/model.md)[author\_member](https://docs.unified.to/messaging/message/model.md)[channels](https://docs.unified.to/messaging/message/model.md)[created\_at](https://docs.unified.to/messaging/message/model.md)[destination\_members](https://docs.unified.to/messaging/message/model.md)[hidden\_members](https://docs.unified.to/messaging/message/model.md)[id](https://docs.unified.to/messaging/message/model.md)[is\_unread](https://docs.unified.to/messaging/message/model.md)[mentioned\_members](https://docs.unified.to/messaging/message/model.md)[message](https://docs.unified.to/messaging/message/model.md)[message\_html](https://docs.unified.to/messaging/message/model.md)[message\_thread\_identifier](https://docs.unified.to/messaging/message/model.md)[parent\_id](https://docs.unified.to/messaging/message/model.md)[reference](https://docs.unified.to/messaging/message/model.md)[subject](https://docs.unified.to/messaging/message/model.md)[updated\_at](https://docs.unified.to/messaging/message/model.md)

Slow fields:

[parent\_id](https://docs.unified.to/messaging/message/model.md)

Writable fields:

[channels](https://docs.unified.to/messaging/message/model.md)[destination\_members](https://docs.unified.to/messaging/message/model.md)[hidden\_members](https://docs.unified.to/messaging/message/model.md)[is\_unread](https://docs.unified.to/messaging/message/model.md)[mentioned\_members](https://docs.unified.to/messaging/message/model.md)[message](https://docs.unified.to/messaging/message/model.md)[message\_html](https://docs.unified.to/messaging/message/model.md)[subject](https://docs.unified.to/messaging/message/model.md)

#### PASSTHROUGH

Unified API Methods:

[POST](https://docs.unified.to/passthrough/overview.md)[GET](https://docs.unified.to/passthrough/overview.md)[PUT](https://docs.unified.to/passthrough/overview.md)[DELETE](https://docs.unified.to/passthrough/overview.md)

List options:

\-none-

Readable fields:

[\-none-](https://docs.unified.to/passthrough/undefined/model.md)

Writable fields:

[\-none-](https://docs.unified.to/passthrough/undefined/model.md)