Convert IMM to PST - Version 5.1 IMM is the mailbox extension of Incredimail and PST isthe mailbox extension of Microsoft Outlook and bothformat are completely different form each other. ButIncrediMail to Outlook Converter program easily ConvertIMM to PST without any trouble. Software Convertseveral IMM files in PST file format with batchconversion. Software preserves all the emailsproperties and converts accurately them into Outlookformat like attachments, read and unread situation,header, etc. software works with all Microsoft Outlookplatforms. Software safely saves all IMM emails intoOutlook new PST file.