Did a quick test against a server which appears not to be vulnerable. I
have just one minor correction; in the usage-field, you have written "
nmap --script smtp-check-vuln.nse [--script-args smtp.domain=<domain>] -pT:25,465,587 <host>
i.e. "smtp-check-vuln.nse" but the script name is "smtp-check-vulns.nse" (plural 's'). Very minor, but annoying
when a user does copy-paste from the usage-field. So, either change the script name or the docs.
Martin Holst Swende