11.   It is a thorough compendium of information about e-mail and includes a section devoted to converting mailboxes, address books and other data to different mail programs.

12.   Look for a small triangle or button at the top of the mailbox column to click on if your mail program can handle reverse sorting.

13.   Microsoft has just added a similar feature to the mail program on its Internet Explorer browser.

14.   Multilingual Mailpad works with your primary mail program to let it send and receive mail in foreign languages.

15.   My mail program, Eudora Pro, downloads attachments into a specified directory automatically.

16.   Other mail programs may be at risk, too.

17.   Some mail programs will also let you do a reverse-sort for items in a column.

18.   The AOL e-mail program, often scorned by those who use more flexible, customizable mail programs, has gotten a few tweaks too.

19.   The documentation that comes with a new mail program may provide some tips.

20.   The most popular of these is Eudora, a mail program published by the Qualcomm Corp. Security researchers said that Eudora was not vulnerable to the problem.