Notre Blog
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CiraSync vs sync.blue: A Practical Story for IT Teams Navigating EO & GEO
If you’re responsible for Microsoft 365 in a modern organization, this story probably feels familiar. Your users expect contacts and calendars to just work on their phones. Executives want the Global Address List at their fingertips. Frontline teams rely on shared...
An Important Update for Customers Using Public Folders in Exchange Online
While Public Folders will remain accessible to users through Outlook, Microsoft is deprecating EWS access for third‑party applications in October 2026. As a result, applications like CiraSync Cloud will no longer be able to read or sync data that resides directly in...
Top 10 Things Every Admin Should Know Before Updating the GAL
Updating the Global Address List is a high-impact administrative task in Microsoft 365. In hybrid, multi-tenant, or coexistence environments, improper GAL Sync can cause duplicate objects, broken address resolution, and user confusion. This guide outlines...
Best GAL Sync Software for Microsoft 365 in 2026: An Enterprise Guide
GAL synchronization is essential for complex Microsoft 365 environments shaped by multi-tenant growth, M&A, and hybrid Exchange deployments. Native Microsoft features provide basic cross-tenant capabilities but fall short of delivering fully automated,...
Two‑Way GAL Sync (GAL‑to‑GAL): How IT Teams Publish, Update, and Govern Contact Data with CiraHub
As organizations adopt more systems, contact data rarely lives in one place. Microsoft 365, Exchange Server, CRMs, and project platforms all store contact records - often inconsistently. This is where two‑way contact syncing becomes essential. Why One‑Way Contact...
Top 5 Best Practices for Keeping Your Global Address List Clean and Current
Your organization’s Global Address List or GAL is one of the most critical business assets for internal communications. A clean and current GAL improves productivity and eliminates communication errors. The best practices include cleaning source data, automating...


