> Sending true plain text email without a multipart HTML section is much worse for deliverability, from my experience (assumedly because plaintext emails are al

> Sending true plain text email without a multipart HTML section is much worse for deliverability, from my experience (assumedly because plaintext emails are almost always "automatic emails") I find that statement very surprising. I haven't sent a single HTML mail in... all the time since I started using email. I never had deliverability problems that I could trace down to the mails being text. (I also have surprisingly few deliverability problems to begin with and my gut feeling is 90% of hostmaster complains can be described as "you've been blocked by the spam filter because you were sending spam".)