I’ve tried a bunch of email backup tools but Aryson Email Backup Software is surprisingly best to backup your emails. The software enables you to migrate mailboxes from over 90 web and cloud-based email clients into various file formats and other email clients. It supports multiple email clients Amazon Workmail, AOL, Arcor, Aruba, AT&T, Axigen, Bluehost, BOL, Gmail, Office 365, and many more. Moreover, the tool offers multiple saving options for various file formats such as PST, PDF, MSG, CSV, EML, EMLX, HTML, MBOX, RTF, XPS, EMF, DOCX, and more.