Hi, How do all these mailers tell whether an e-mail has actually been read or not? By that, I mean, how does pine (or sylpheed or whatever) find out if an e-mail has actually been read? Please note that I am not asking how they indicate whether an e-mail has been read or not (this is different for different mailers) but how to they find out whether each e-mail in the folder should be classified as unread or read. This may well depend on format (MH or mbox or the like) but I still wonder how this is settled. Thanks and best wishes! __________________________________ Do you Yahoo!? Take Yahoo! Mail with you! Get it on your mobile phone. http://mobile.yahoo.com/maildemo