Is there any solution to convert my Dovecot Mails to Outlook PST format? Yes, there is a solution named as Dovecot Mails to Outlook Converter. This is the best way to convert emails from Dovecot mail format to Outlook. The tool exhibit various effective features like; it can import a single file or a folder containing multiple Dovecot MBOX files for the conversion. It also has the provision to split the files with large files into smaller PST file chunks. The tool is the first choice for the user who want to convert their Dovecot mailbox into MS Outlook PST format and also recommended by the experts..