CW-PLAYER 4.0
(Version down the 26/09/2010)
Turn off SMTP commands like VRFY and EXPN in your server configuration configuration to prevent attackers from harvesting valid email addresses.
The "Speed" in its name refers to its use of , allowing it to scan a vast number of IP addresses simultaneously using many parallel threads. This makes the process significantly faster than scanning with a single-threaded tool. Speed Smtp Scanner V2.5 Free Download
Here are some of the primary features that define this utility: Turn off SMTP commands like VRFY and EXPN
Are you trying to or audit a server's security ? and open relay status.
nmap --script smtp-enum-users -p 25 2. Metasploit Framework
A sluggish or overloaded mail server can cause latency, damaging sending reputations and blocking critical marketing campaigns.
: Instantly analyzes your SMTP server banner, response times, and open relay status.