If there is SMTP (Simple mail transfer protocol), is there also HMTP (Hard mail transfer protocol)?

I never thought of that xD

I once made a java class called "SimplePageResult.java". He said to me that i should never assume complexity in naming, since complexity usually grow over time and also the definition of "simple" is subjective for each person. He also said it insinuated that a class with same purposes but the opposite of "simple" exist (which weren't the case) - much like you are pointing out with the SMTP.
I've never assumed anything in classes since then.

I don’t think there’s anything simple about it or people would created a fucking jquery plugin to send emails.

It's called sexting.

The oposite of simple is not hard, it's complex so you should be searching for cmtp

@kaae On the contrary, SMTP does have at least one, more complex protocol: Microsoft Exchange. That shit-stain of a protocol - birthed after Satan ingested an entire box of laxatives - is a fucking offense to the simplicity that is SMTP.

As a matter of fact, it seems that SMTP had two predecessors: (Wikipedia)

SMTP can trace its roots to two implementations described in 1971: the Mail Box Protocol, whose implementation has been disputed,[2] but is discussed in RFC 196 and other RFCs, and the SNDMSG program, which, according to RFC 2235, Ray Tomlinson of BBN invented for TENEX computers to send mail messages across the ARPANET.[3][4][5] Fewer than 50 hosts were connected to the ARPANET at this time.[6]