You can utilize the Office 365 Email Backup software to create a backup of your Office 365 mailbox. This software backs up Office 365, including all data items such as attachments, contacts, calendars, and so on. You can use this application to save your Office 365 database locally in various file formats, including PST, EMLX, MBOX, EML, and MSG.

CloudMigration Office 365 Email Backup tool to Export Office 365 Mailbox to PST is a simple, lightweight, and reliable utility to Export Office 365 Mailbox Emails to PST on Windows 10, 8.1, 8, 7, XP (32 bit / 64 bit) Computer. Pro Solutions provides the best outlook backup software which helps you in getting back your lost or deleted emails from your Office 365 account at an affordable cost.

MacSonik Office 365 backup tool is prominent software that helps backup Office 365 emails, contacts, task, notes,etc to 20+ file formats and email clients. This software maintains data integrity and security throughout the conversion. This utility helps in removing any duplicate emails from the conversion process which makes managing emails easy. The Mail Filter offers option to download Office 365 mailbox to a desired format from a specific date range. Office 365 backup tool for Mac helps users to set the desired name of the resultant file. Its simple GUI makes it convenient to use for both technical and non-technical users.

Do you want to backup your Office 365 data on your local server or device? Then it's a good idea to download all the Office 365 data in PST format and store them in a safer location. Using Regain Office 365 Email Backup Tool . With the help of this tool easy to backup Office 365 mailbox items in no time.

Use the Office 365 Import/Export feature

● This feature allows you to export data from Office 365 and import it into another Office 365 account or an on-premises Exchange server. However, you can also use it to export data to a PST file that can be saved on your local server. Here are the steps to use this feature:
● Login to the Office 365 Admin Center and go to the Exchange Admin Center.
● Click on the “Import/Export” option and select the “Export to a PST file” option.
● Add the mailboxes that you want to export data from.
● Provide the export settings and select the option to export to a PST file.
● Lastly, run the export and download the PST file.

Get more detail visit this post - Why do I need to backup my Office 365 mailboxes

Having Backup of vital information always plays an important role in emergency. As we know that the cloud platforms are the safest place to keep data. We also know the data venerability and durability is a question mark. So, doesn't mean that you using Microsoft platform and you do not need to backup data. After understanding all the pros and cons, SysTools has developed all-in-one Office 365 backup software to help people have all saved locally. You can try free demo version to test the working. Give it a try!