> We were having problems with HTML in certain clients. Namely, > Outlook 2000 wasn't rendering the code and was just showing the > source. > > Earlier we had QUIET SET everyone on our lists to SHORTHDR for > administrative reasons. We had also added this as a Default-Option > in the header. > > Outlook requires normal long style headers to display HTML > correctly. > > Moral of the story: If you are going to be distributing HTML to > your lists, make sure you have standard headers set. It's not just Outlook. Setting SHORTHDR strips out the MIME headers that are needed by all MIME-capable email clients.