Import Outlook OST to IMAP with the help of eSoftTools OST converter software. It easy to use and one of the best tool compared to other company software. It is 100% safe and risk free from each virus for your system. It import contacts, calendars, tasks, emails and more mailbox items from OST file to IMAP and other 10+ formats such as EML, PST, Yahoo mail, MSG, Gmail, EMLX, Office365, EMLX, MSG HTML, and more formats. It also provides 24*7 technical support with online chat option.