Here’s 2 whitepapers helping you through the process of migrating your on-premise email to Exchange Online:
- Migrate to Microsoft Online Services
This document describes how to migrate your on-premise Exchange Server mailboxes and POP3 and IMAP4 mailboxes to Exchange Online Microsoft Online Migration Toolkit
- Microsoft Online Migration Toolkit
Sample migration planning materials including: project plan, communication plan, tracking spreadsheet, procedures, e-mail templates, Known Issues and FAQ.
Sample e-mail migration planning materials