What percentage of internet users use sendmail versus postfix
including names of some major internet site that use each?

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Request for Question Clarification by gnovos-ga on 02 Oct 2002 15:15 PDT

What would you consider to be a "major" site?  Are you going by
company size in employees, in gross capital invested, or just in the
popularity of the site regardless of actual company size?

"Internet users" sounds as if you mean "normal people" like you and
me... most of whom won't use any of those MTAs (mail transfer agents).
They'll just use a MUA (mail user agent) aka email client such as MS
Outlook Express or Eudora or Agent to connect to the email server of
their provider -- and their *provider* will then be running something
such as sendmail or Postfix or qmail or Exim or MSexChange Server or
whatever.

Do you mean how many companies/providers use sendmail vs postfix? Or
how many end users? (After all, most end users do not make a conscious
choice; they just go with what their provider or company has.)

And "internet sites" sounds as if you mean "web sites" -- most web
sites don't include an MTA (though many sites use scripts which can
send email, such as feedback email, to the people who run the site,
and then an MTA will usually be involved somewhere along the line). Or
do you mean "companies" with "internet sites"?