Some programs, such as Outlook Express, Mailsmith, and PowerMail, recognize that they've come late to the game and provide conversion capabilities, either internally or via AppleScript scripts. In other cases, you may have to use utility software. Refer to the table for hints on which formats different programs can import. We can't provide conversion advice specific to every possible combination of programs, but if you follow these general steps, you'll find out whether you can move to a new program easily. Visit the Web site for the program you're considering and download a demo.
Every program mentioned here has an evaluation version.
Look in the file menu, in an included utilities folder, or within Netscape Communicator, in the hierarchical Tools menu under the Communicator menu, for menu items or utilities related to conversion. If you see a conversion option, use it. In particular, check out Richard Shapiro's MailConverter and InterGuru's Email Address Conversions. If no direct conversion path exists, see if you can convert the data from your program into Eudora format, then into your desired destination format. Since Eudora mailboxes and address books are just specially formatted text files, they often provide a useful interchange format.