How to sync room calendars between Microsoft 365 tenants?
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How to sync room calendars between Microsoft 365 tenants?

Imagine a scenario where your company shares an office meeting room(s) with another organization, and both of you utilize Microsoft Office 365 as your preferred office suite. However, you encounter a challenge: meetings cannot be directly shared between the two tenants. In such a situation, how can you effectively manage the room’s calendar? Fortunately, SyncPenguin…

A simple two-way contact sync between Microsoft 365 GALs (Global address lists) in 2025
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A simple two-way contact sync between Microsoft 365 GALs (Global address lists) in 2025

GAL (Global Address List) is a list of contacts that are accessible to all users across Microsoft 365 (formerly known as Office 365) tenant. This list combines tenant user details, as well as organizational contacts and information about groups. In this article we will explore how you can use SyncPenguin to set up a full…

How to enable delegate access to an Office 365 or Exchange room or resource calendar?
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How to enable delegate access to an Office 365 or Exchange room or resource calendar?

In this article, we’ll go over the steps necessary to enable full delegate access to an Office 365 or Exchange room or resource calendar. SyncPenguin uses this permission to connect a room or resource calendar through a dedicated user or service account in order to two-way sync room calendars between or within tenants. Office 365…

How to automatically push Microsoft 365 GAL (global address list) to personal user mailboxes and mobile devices?
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How to automatically push Microsoft 365 GAL (global address list) to personal user mailboxes and mobile devices?

Maintaining seamless access to all contacts is crucial for efficient email communication and productivity on mobile devices. However, organizations that rely on Microsoft Office 365 as their office suite often face the inconvenience of not being able to access their organization contacts on their mobile devices, even with Outlook contacts integrated into iPhone or Android….

On syncing user calendars between Microsoft 365 and Google Workspace (updated in 2025)
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On syncing user calendars between Microsoft 365 and Google Workspace (updated in 2025)

Microsoft 365, formerly known as Office 365, and Google Workspace are widely recognized office suites catering to businesses of all sizes. While each has its own advantages and disadvantages, this article aims to address a specific scenario where organizations or teams may need to utilize both solutions simultaneously (for example, after a company merger or…

Office 365 Calendar Meeting Sync Between Organizations or Tenants
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Office 365 Calendar Meeting Sync Between Organizations or Tenants

Managing meeting bookings and ensuring there are no scheduling conflicts can be a daunting task when employees in your organization have active work accounts across different Office 365 tenants. To address this challenge and simplify calendar management, SyncPenguin offers a reliable and efficient solution β€” a two-way synchronization that keeps calendars up-to-date with a seamless…

Syncing Office 365 Contacts From a Public Folder to User Mailbox Folders (One-to-Many Sync)
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Syncing Office 365 Contacts From a Public Folder to User Mailbox Folders (One-to-Many Sync)

In this article, we’ll explain how you can easily use SyncPenguin to establish an automatic, one-way sync of contacts from a single Microsoft Office 365 source folder (public folder or shared mailbox) to multiple (or all) destination users of the same or different tenant. Please note that the same instructions apply when syncing Office 365,…

How to Enable Impersonation in Microsoft 365 or Exchange Server On-Premises (2025 version)
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How to Enable Impersonation in Microsoft 365 or Exchange Server On-Premises (2025 version)

Impersonation is a way of granting a single Microsoft 365 (formerly Office 365) or Exchange on-premises account domain-wide access to perform actions on behalf of other users through Exchange Web Services (EWS) API. This is extremely useful when developing an organization-level calendar, contact or task integration within a tenant or between two tenants. SyncPenguin has…