If you are looking for a tool to migrate Thunderbird to Office 365 then use a reliable application. MailsDaddy Thunderbird to Office 365 migration tool export a single or multiple Thunderbird to Office 365 or Exchange server 2019, 2016, 2013 & other earlier versions.

Here we are going to know our next popular application i.e. MailsDaddy Thunderbird to Office 365 Migration Tool. This featured tool allows the user to convert Thunderbird email to Office 365, PST, and Live Exchange mailboxes.

As we know Mozilla Thunderbird supports various mail formats: MBOX, Maildir, and EML. But no one knows about Office 365 mail format as it is a cloud platform. Therefore it is necessary that we use reliable and high-quality software.

This GUI application is the only application suggested by professionals that allow uploading both Thunderbird MBOX and Maildir mailboxes to Office 365. It has many features and conversion options that provide the hassle-free conversion from Thunderbird to Exchange Server 2019, 2016, 2013, and other earlier versions.

Thunderbird to Office migration 365 steps

1. Download MailsDaddy Thunderbird to Office 365 migration tool and install it.
2. Launch the application and click on the Auto-load button. You can use the browse button in case Mozilla Thunderbird is not installed.
3. Previewing is an optional choice so you can leave it and click on the Export button before bulk conversion.
4. In the new window, select the All Mail folder and enable the Office 365 export option.
5. Select a mailbox: Primary or in-place archive mailboxes. A folder name is an optional option.
6. Click on the Next button and fill in the login credentials, then hit the Sign-in button.

Read More - Export Thunderbird email, contact, & calendar to Office 365

As you can see above these steps are based on just choice and clicks so any newbie user can change their mailbox and open Thunderbird email to Office 365 cloud platform. You can use the free version of this to try the capabilities of the software itself, which provides you with the convenience of 20 email conversions from every mailbox.