why we need SMTP server??

  • From: "ikm7176" <ikm7176@xxxxxxxxxxx>
  • To: exchangelist@xxxxxxxxxxxxx
  • Date: Sun, 28 Sep 2003 01:57:20 -0600

Why we neet SMTP virtual server/SMTP service or Exchange 2000.

Can't we use ISP's DNS settings on the E2K server machine only to send
mails.

what makes SMTP so important in any mail servers ?

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