How to Convert Pegasus to Outlook Express? No worry about it, the task is simply solved by MailMigra for Pegasus; it is able to convert emails from Pegasus to Outlook Express EML format with all required information. Using Batch user can convert unlimited mails from Pegasus (PMM) to Outlook Express (EML) at once. The Program can save all attributes of .imm to .eml: Header information, formatting, font size and Layout. To know more you can download its free trial edition that can convert 5 emails from Pegasus to Outlook Express. Without thinking so much about Pegasus to Outlook Express order it now, also its quite affordable as it would only cost you 49 USD only.