You can export MBOX of Mozillamail, Thunderbird, Spicebird, AppleMail, Eudora, OperaMail, Mulberry, Netscape, Pocomail, ClawsMail, Entourage, Evolution, Sylpheed, Cone, SeaMonkey, Mutt, Gnu Mail clients to Outlook 2003, 2005, 2007, 2010, 2013 & 2016 Outlook PST format. You can convert mailbox to HTML, RTF, PDF & Office 365 Formats. http://www.ibidinfo.com/product/mbox-to-pst-converter
241 visits