[smcl]

> "post" was a different word for "mail",

this is clear

> and "fix" was for Sendmail

this is unclear. I don't know how you get "fix" from "Sendmail"

[Bootvis]

Sendmail was the problem, Postfix was the fix.

[smcl]

Ah nice, so it's more like:

> "post" was a different word for "mail", and [the application was itself a] "fix" ... for Sendmail