From: Mitch Halmu [mailto:mitch@netside.net] Sent: Thursday, May 24, 2001 2:48 PM
On Thu, 24 May 2001, Matt Cramer wrote:
I will give you a solid reason why we won't try this, quoting research with POP-before-SMTP conducted by the founder of MAPS TSI, Chip Rosenthal http://users.laserlink.net/~chip/relay-pres-9910/
You don't have to believe me that our clients will not accept that, take his words instead:
"Our users hated it - particularly those using MS Outlook"
No need to describe what happens when your clients hate your service...
On that same page, I found this very interesting. The part about false positive, to normal relay testing, got my attention. Guys, there are more cases that may look like an open relay, but really aren't. <quote> Escalating Credentials Curently deployed in Laser Link network Amalgamation of two mechanisms: POP-before-SMTP Rate limiting Count mail from originating IP address ... Disadvantages: Complex implementation Will users accept upper limit? False positive to conventional relay testing </quote>