After 3 weeks using Postbox, I am finding it really easy to use and it keeps my 7 email accounts separate but easily connected to and switched between. Unlike Outlook, if you are viewing one mailbox and send an email, it sends it from that account automatically. Outlooksends it from the default unless you remember to manually switch sending addresses. I have been caught by this a few times. Postbox has a learning spam filter. The more posts you flag as spam the more it remembers sources and begins to automatically flag up spam messages. It displays the headers so you can check them out, and then you can delete them en masse. An alternative to things like mailwasher. It doesn't eat digitally signed Acrobat invoices which Thunderbird started doing. I shall be buying it when the free trial expires. Peter