OK, I asked almost this exact question 5 years ago or so, I think I can go with the answers I got then, so never mind.
Mind like a steel... what is that meta thing with all the holes in?
I have a friend who has a mail account that he can access using Horde, but he really hates Horde and it is missing at least one feature that he really wants (Horde will not show if a message has an attachment in the message list without making a change server-side which he cannot do). So, question.