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Written By Rohit Singh
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Updated on April 28th, 2026
User Query: I’ve got years of emails in Outlook, and my company is finally switching to Office 365. The IT guy said I need to migrate everything, including my contacts and calendar data, but I have no idea where to start. I tried looking it up, but most guides are either too technical or they skip steps.
If you’ve been using Outlook for years, your mailbox probably has a ton of emails, contacts, and attachments stacked in PST files. A lot of people and businesses are moving to Office 365 because it’s easier to access from anywhere. This blog walks you through both ways to migrate Outlook emails to Office 365. We will cover the manual and a simpler tool-based approach using the Cigati PST Converter Tool.
Users search for a solution to keep their Outlook PST files in a single place, like Office 365. We can migrate data to Office 365 using the POP or IMAP settings or by automated Outlook PST Converter.
There are two parts to this. To begin with the manual method, you need to connect the Office 365 account with Outlook. After that, you need to import the PST files to migrate Outlook mailbox to Office 365:
The Cigati PST Converter is a simple and user-friendly utility that lets you convert Outlook PST files. It works with both ANSI and Unicode PST files, so you don’t have to worry about compatibility. One thing that’s actually useful is that you don’t need Outlook installed on your system to use it. It converts everything inside the mailbox, emails, contacts, calendars, and attachments. The interface is simple enough that you don’t need to be technical to figure it out.
Steps to Migrate Outlook PST to Office 365
Migrating Outlook emails to Office 365 is something most people find more complicated than it actually is. The manual method works, but it’s not ideal if you have a lot of PST files or don’t want to deal with technical settings. You have to go through multiple steps, and there’s always a chance something doesn’t transfer cleanly. The Cigati PST Converter makes the whole conversion easy. You don’t need Outlook installed to migrate Outlook emails to Office 365.
You May Also Read: Migrate from Outlook to Google Workspace
Ans: The manual method only allows one PST file at a time, which can be slow. The Cigati PST Converter Tool supports bulk migration, letting you import multiple PST files into Office 365 in one go.
Ans: Yes, the manual method completely depends on Microsoft Outlook. However, the Cigati PST Converter Tool works independently and does not require Outlook installation.
Ans: Yes, both methods support migration of emails, contacts, and calendar data. The Cigati PST Converter Tool ensures all mailbox items are transferred accurately without missing details.
Ans: Yes, it is safe when done correctly. Manual methods require careful configuration, while tools like the Cigati PST Converter Tool provide a more secure and error-free migration process.
About The Author:
Rohit Singh is an Email Backup, Recovery & Migration Consultant and is associated with Software Company from the last 3 years. He writes technical updates and their features related to MS Outlook, Exchange Server, Office 365, and many other Email Clients & Servers.
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