D. E. Knuth would not agree: "(Encrypted messages that I get from "gmail.com" are also gibberish and unreadable without great pain.) Send PLAIN ASCII TEXT ONLY."

http://www-cs-faculty.stanford.edu/~uno/taocp.html

ha, the new gmail constantly puts e-mails from my customers into "Promotions"...

I'm confused by this response, and I've seen it often. You don't have to use this feature of Gmail. It can easily be reverted back to default email behavior. So I'm perplexed when people complain about it not working very well, and from everything I've heard, few people actually do think it works well...

I think it works pretty damn amazingly.