[ih] SMTP History

[Emiliano Spinella]

Hi everyone,

Lately, I have been looking for information regarding the history of SMTP
but could not find much information.

Basically, I am interested in the initial Email system protocols and how
SMTP got its final form. I imagine there must have been multiple protocol
alternatives for Email but somehow SMTP became a standard.

Were there some relevant milestones that helped SMTP to become broadly
adopted? I imagine there must have been some important institution or set
of institutions that drove the adoption.

Also, is there any reason why POP3 and later IMAP were not part of SMTP?

I was wondering if somebody in this list could give me some light.

Thanks,
Emiliano

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