The best backup solution the emails is Aryson Email Backup Software. The tool provides you with a robust solution to back up the emails and save them on your local device. This utility allows you to save or download email messages from various email clients like Gmail, Office 365, AOL, and many others into multiple file formats. This tool has the following features.
1) The tool allows you to save emails with or without attachments.
2) You can remove duplicate email messages from selected folders.
3) It has a feature to delete emails from the server using Free-up Server Space option.
4) Easy-to-use user interface.
5) Free demo version which allows you to take the backup of 50 emails per folder for free.
Read More: https://www.aryson.in/software/email-backup/