Well you're right that we can have a generic FTS system with a general OS based search with specific handlers for mailbox types. I guess you're trying to say th

Well you're right that we can have a generic FTS system with a general OS based search with specific handlers for mailbox types. I guess you're trying to say that the file formats have become too complex where the clients themselves can't implement them bug-free. About that, perhaps another way to tackle that is not to go back to a more "primitive" format but to improve the quality of email clients. Personally, I never have IT problems, so I can't comment on the support burden. But I agree with you that if I had to re-prioritize, then reducing the support costs by trading performance and going back to a simpler format is probably worth it.