1. Connectors
2. Exchange On-Premises Calendar Meetings

SyncPenguin's connector for Exchange On-Premises calendar meetings

Sync your Exchange On-Premises calendar meetings two-way or one-way with other apps and services

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Many organizations still run Exchange Server on their own infrastructure, while partners, contractors, or other departments use Google Calendar, Microsoft 365, or personal calendars. These systems don't share availability with each other. People end up double-booked, re-entering meetings by hand, or checking several calendars. SyncPenguin keeps your Exchange On-Premises calendars automatically in sync with other calendar platforms, so schedules stay accurate without manual work or custom IT projects.

How does it work?

The Exchange On-Premises Calendar Meetings connector links calendars on your own Exchange Server to the other calendar apps your team uses. You can sync meetings one-way or two-way with Google Calendar, Microsoft 365, Outlook, iCloud and others, so everyone sees the same schedule wherever they work. It handles recurring meetings, attendees, rooms, categories and time zones. It works with personal calendars, shared and room mailboxes, and public folder calendars. With SyncPenguin's no-code rules, you decide exactly which meetings are synced and how each field is copied.

What can Exchange On-Premises calendar meetings be synced with?

Exchange On-Premises

Calendars

Google

Calendars

iCloud

Calendars

Microsoft 365

Calendars

Microsoft 365 Group

Calendars

Monday.com

Tasks

Outlook

Calendars

Salesforce

Calendars

Zoho CRM

Tasks

Zoho CRM

Calendars

Popular real-world use cases

• 
  Two-way sync an employee's Exchange On-Premises calendar with their Google Calendar, so meetings booked on either side appear in both.

  
• 
  During a gradual migration from Exchange Server to Microsoft 365, keep on-premises and cloud calendars in sync so users on both platforms see the same schedules.

  
• 
  Copy only the time slots of work meetings from Exchange On-Premises to a personal Outlook.com calendar as private 'Busy' blocks, hiding subjects and descriptions with custom rules.

  
• 
  Sync personal appointments from an iCloud calendar into Exchange On-Premises as busy blocks, so colleagues see accurate availability without seeing private details.

  
• 
  Publish meetings from an Exchange public folder or shared room calendar to a Microsoft 365 Group calendar, so a cloud-based team can see room bookings.

  
• 
  Import events from an external iCalendar (.ICS) feed, such as a holiday, training, or booking schedule, into a shared Exchange On-Premises calendar.
• 
  Keep sales reps' Exchange On-Premises meetings in sync with Salesforce, so customer meetings are logged in the CRM automatically.

  
• 
  Sync Zoho CRM meetings to Exchange On-Premises calendars, so meetings scheduled in the CRM show up in Outlook.

  
• 
  Merge several team members' Google Calendars into one shared Exchange On-Premises calendar for a combined team availability view, filtered to work-related events only.

  
• 
  Sync meetings with specific categories from one Exchange On-Premises calendar to another, for example from a manager's calendar to an assistant's or department calendar.

Key features

Recurring Meetings

Syncs full recurrence patterns, including deleted occurrences and individually modified instances, so repeating meetings stay accurate.

Shared & Public Calendars

Connect your own calendar, a delegated, shared or room mailbox, or an Exchange public folder calendar.

Smart Duplicate Prevention

Before creating a meeting, SyncPenguin checks for a matching event and links to it instead of creating a duplicate.

Rich Meeting Details

Syncs attendees, resources, categories, free/busy status, sensitivity, reminders, Teams links and optional attachments.

No Unwanted Invites

Synced meetings are saved silently, so attendees don't receive extra invitations or cancellations.

Affordable & Scalable

With SyncPenguin you only pay for changes to your data, regardless of how many meetings you initially have, or will have in the future.

Supported fields

Subject Start End Is all day? Time zone Location Description Attendees Resources (rooms & equipment) Categories Organizer Free/busy status Sensitivity Reminder My response Recurrence pattern Deleted occurrences Recurrence exceptions Attachments Teams link Link to event page iCalendar ID Is recurring? Is recurrence exception?

Things to note

• Your Exchange Server must have Exchange Web Services (EWS) enabled and reachable from the internet so SyncPenguin can connect to it.
• Synced meetings are saved without sending invitations or cancellations to attendees. This prevents unwanted emails, but SyncPenguin cannot be used to send meeting invites.
• For meetings organized by someone else, or meetings with other attendees, only the date and time are updated. This protects the organizer's original meeting details.
• Organizer, response status, event page link and recurrence status fields can be read and used in rules, but cannot be changed through syncing.
• Attachment syncing is optional and must be enabled in the connection settings. Very large attachments may slow down syncing.
• The initial sync covers recent and upcoming meetings plus active recurring series. Very old past meetings are not synced, which keeps syncing fast and relevant.
• Custom Exchange fields are not available for mapping. All standard meeting fields are supported.

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Frequently Asked Questions

Can I sync my Exchange Server calendar with Google Calendar?

Yes. SyncPenguin can sync Exchange On-Premises meetings with Google Calendar one-way or two-way. You can also sync with Microsoft 365, Outlook.com, iCloud and other supported calendars. Filters and custom rules let you control which meetings are synced and which details are shared.

Which Exchange Server versions are supported?

The connector works with Exchange Server deployments that provide Exchange Web Services (EWS), which is available in most modern Exchange Server versions. You only need your EWS server address and account credentials to connect.

Can I sync shared, room or public folder calendars?

Yes. You can sync your own calendars, a delegated or shared mailbox such as a room or resource calendar, and Exchange public folder calendars, provided your account has access to them.

Will attendees receive invitation emails when meetings are synced?

No. SyncPenguin saves synced meetings without sending invitations, updates or cancellations, so your attendees won't receive unexpected emails.

Does it support recurring meetings?

Yes. Recurring meetings are synced with their full repeat pattern, including deleted occurrences and individually changed instances, so the series looks the same in every calendar.

Will syncing create duplicate meetings?

SyncPenguin is designed to avoid duplicates. Before creating a meeting, it looks for an existing event with the same time and a similar subject and links to it instead of creating a new one. This is especially useful during the initial merge of existing calendars.

Can I sync only my availability without sharing meeting details?

Yes. With SyncPenguin's no-code rules you can replace subjects with 'Busy', hide descriptions and locations, mark events as private, or sync only meetings that match certain conditions.

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About Exchange On-Premises

Microsoft Exchange Server is Microsoft's email, calendar and contacts server that organizations install and manage on their own infrastructure. It powers Outlook calendars for many businesses, government agencies and institutions that need full control over their data. Exchange calendars support meetings, recurring events, room and resource booking, shared mailboxes and public folders.

Official website: https://learn.microsoft.com/en-us/exchange/exchange-server