I agree, Doug--Eudora Pro is great. Which OS do you use it with? What Eudora version? I am using 6.2.4 with Tiger. There is a Wikipedia entry for Eudora that says the Mozilla Thunderbird version (codename Penelope) will be open source and will not retain the original mbox data structure. It "is still in beta stage." However, a third party, Infinity Data Systems, is also developing a client that is supposed "to mimic Eudora's functionality." You can read it all at the link below. Leith http://en.wikipedia.org/wiki/Eudora_%28e-mail_client%29 >I have used Eudora Pro for over 20 years with no problem. I see a lot >of traffic regarding Mail. I love Eudora more every time I see the >problems others have with Mail. It reminds me a lot of the PC/Mac >situation...Doug F --- Manage your account options at //www.freelists.org/list/muglo