[comp.mail.misc] Secure SMTP gateway?

dcheney@dcheney.austin.ibm.com (David Cheney) (04/04/91)

OK.  I'm a newcomer to this newsgroup so bear with me.

I'm wondering about sendmail/SMTP authentication of mail origination.
The well known 'telnet <host> 25' method of spoofing the mailer makes
me wonder if there is such a thing as a secure SMTP gateway.

I 'spose this has generated reams of bits numerous times, but if
you will summarize or cite references I'd be grateful.

Thanks.
-- 
------------------ These words are my own.  Surprised? --------------------
                                                                      
David J. Cheney  (512)823-3799  IBM Advanced Workstation Division, Zip 2401
dcheney@dcheney.austin.ibm.com         11400 Burnet Road, Austin, TX  78758