SMTP Authentication and Email Headers question
Could you please explain what stops yourdomain.com using calmer.com's SMTP to send out mass-emails (or, for that matter, a single one). I'm used to password authentication or, pop-first, which amounts to the same thing.
Also, when I send emails via FQ SMTP, on email header says:
> Received: from unknown (HELO calmer.com) (188.8.131.52) by calmer.com with SMTP; 21 Jan 2001 00:23:19 -0000
Where the helo calmer.com is what I specify to identify self to SMTP Server.
How can I get rid of the "Received: from unknown", since I specifically specify calmer.com. Same happens if I change that into say "Electronic Post Office", this results in
> Received: from unknown (HELO Electronic?Post?Office)