Rediffmail Backup

Best software to take backup of Rediffmail emails to multiple file formats such as Rediffmail to PST, MSG, EML, EMLX, MBOX, HTML, MHT, XPS, PDF, RTF, DOC, Windows Live Mail, Lotus Notes, Zimbra, Thunderbird, Office 365, Gmail, G Suite, Outlook.com, Yahoo Mail, Rediffmail and IMAP Host. The software support all Microsoft Windows Operating system including Windows 10.