Re: How to find out if SMTP mailserver supports STARTTLS or (only) SSL/TLS ?

[Dave Horsfall <dave () horsfall org>]

On Sat, 21 Oct 2017, Ben Stover via dev wrote:

> How can I find out (with nmap/netcat) if this smtp mailserver supports 
> STARTTLS protocol or (only) SSL/TLS?

Telnet to it and see what the banner says?  You can't do it stealthily, if 
that's what you're after; you have to connect to it.

--
Dave Horsfall DTM (VK2KFU)  "Those who don't understand security will suffer."
_______________________________________________
Sent through the dev mailing list
https://nmap.org/mailman/listinfo/dev
Archived at http://seclists.org/nmap-dev/