I am using gnus and I would rather it not expire read mail in the usenet fashion.
This doesn't seem to be working:
(remove-hook 'gnus-mark-article-hook
'gnus-summary-mark-read-and-unread-as-read)
(add-hook 'gnus-mark-article-hook 'gnus-summary-mark-unread-as-read)
Any ideas to make it a little bit more like a "normal" MUA?