A bulletin is a mail to everyone (public mail). It can be read by all stations
but can be only deleted by the sender and/or the BBS sysop. Depending on its
topic it is part of a certain board. It will be deleted when its lifetime has
expired. To send a bulletin you have to use a distribution address, see

In contrary to bulletins there are mails to users (user mails). They can be
deleted by the sender, the recipient and the BBS sysop. They have a lifetime,