DEV IT, a Microsoft and Azure Partner, simplifies On-Premises Exchange to Microsoft 365 migration by ensuring secure mailbox migration, seamless identity synchronization, and uninterrupted mail flow—helping IT teams reduce server overhead and move to a cloud-ready messaging platform.
Migrating from on-premises Exchange to Microsoft 365 requires careful management of identity, mail flow, and security. DEV IT, a Microsoft and Azure Partner, delivers Hybrid Exchange migrations that enable coexistence between on-premises and cloud environments, ensuring uninterrupted email services and long-term operational stability.
We create a Hybrid Exchange environment using Hybrid Modern Authentication, allowing for coexistence between on-premises Exchange and Exchange Online while also supporting phased migrations and centralized SMTP management.
DEV IT implements Microsoft-recommended HCW setups to ensure safe mail flow, free/busy visibility, mailbox delegation, and batch migration across environments.
We use Azure AD Connect to sync users, shared mailboxes, resources, distribution groups, and delegated permissions while retaining access and administrative models.
Organizations that retire on-premises infrastructure save money on hardware and maintenance while transitioning to a predictable Microsoft 365 subscription model that is aligned with growth.
Microsoft 365 includes built-in defenses including anti-phishing, DLP, and AI-driven threat detection, as well as regular upgrades that lessen the operational strain on IT teams.
Exchange Online provides high availability and built-in disaster recovery, allowing email services to grow without the need for additional infrastructure or complex modifications.
DEV IT follows a structured and risk-controlled approach to migrate on-premises Exchange environments to Microsoft 365. As a certified Microsoft and Azure Partner, we ensure secure identity integration, stable mail flow, and seamless coexistence between on-premises and cloud systems minimizing disruption while improving long-term operational efficiency.
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We examine your current Exchange servers, Active Directory configuration, mail flow paths, authentication methods, and dependencies to identify hazards and define the migration scope.
Based on the findings, we develop a hybrid Exchange architecture that includes Azure AD Connect, authentication models, mail routing, batch sequencing, and rollback planning.
We use the Exchange Hybrid Configuration Wizard (HCW) to set up coexistence features like free/busy sharing, delegation, and mail flow, followed by technical validation.
To provide access continuity between environments, we synchronize users, shared mailboxes, resource mailboxes, distribution groups, and delegated permissions.
Mailbox migrations are carried out in regulated batches with ongoing monitoring to assure mailbox integrity, uninterrupted SMTP flow, and user experience stability..
Following the move, we optimize security rules, compliance settings, and Microsoft 365 setups, as well as providing continuous support to ensure the environment remains stable.ncy.
we delivers secure Microsoft 365 migration services focused on operational continuity, risk reduction, and simplified IT management—ensuring smooth, secure, and future-ready cloud transitions.
Since 1997, DEV IT has provided practical, scalable solutions to help organizations modernize infrastructure, improve security, and maximize IT investments.
Our certified partnerships ensure that you receive enterprise-grade Microsoft solutions that are tailored to your specific needs, backed by the most recent best practices and cloud advancements.
We don’t just migrate servers we protect them. Our proprietary Fortify solution provides advanced threat protection, compliance enforcement, and continuous monitoring.
DEV IT incorporates CIS18 controls, Zero Trust architecture, and AI-powered security into Microsoft 365 environments to keep your company secure, audit-ready, and resilient to new threats.
Our teams understand regional business needs, providing proactive, on-demand support that keeps your operations running smoothly.
We design migrations and IT operations to minimize disruption, reduce risk, and ensure your teams remain productive during every phase of the transition.
On-Premises Exchange Migration is the process of moving email, calendars, contacts, and related data from a locally hosted Exchange server to Microsoft 365 while maintaining mail flow, security, and user access.
Migrating reduces infrastructure costs, improves security, enables remote access, and provides a scalable, cloud-ready messaging platform. It also simplifies management with automatic updates and built-in compliance features.
DEV IT, a Microsoft and Azure Partner, follows a structured approach using hybrid coexistence, identity synchronization, secure mail flow configuration, and our proprietary Fortify solution for threat protection and compliance monitoring.
Migration duration depends on mailbox size, number of users, and environment complexity. DEV IT designs phased migration plans to minimize downtime and ensure business continuity throughout the process.
After migration, DEV IT optimizes mail routing, security policies, and governance settings, and provides ongoing support to ensure stable operations, compliance, and scalability in Microsoft 365.