If you use Incredimail and want to import the messages to Outlook, you'll need to use a program that can convert them to a format Outlook supports.
Incredimail Backup Pro will export them to EML format (used by Outlook Express) and once they are in OE, you can export them to Outlook.
IncrediConvert is free but may not work with all versions of Incredimail due to file format issues.
Incredimail supports exporting contacts to CSV format, which Outlook can import.
Published October 31, 2007. Last updated on June 22, 2012.