IncrediMail supports IMM format to save emails and doesn’t assent
to convert IncrediMail files into other email format. In such condition, if users
might be need for the conversion of IncrediMail to MBOX then IncrediMail
Converter properly works because I was in trouble for IncrediMail to MBOX
conversion before some time then I got IncrediMail Converter and it converted IncrediMail
files to MBOX in short time.