2011/7/14 Peter Tselios <s91...@yahoo.gr>: > Hallo, > I need to prepare a presentation for my company because we plan to > deploy a new mail system. I need to know the names of some medium to large > ISPs that uses Postfix as their SMTP server. Do you know where I can find > that information? > Thanks > Peter
Maybe you could try to use smtpscan[1] to guess which mail software is used on remote servers you want. HTH [1]: http://packetstormsecurity.org/search/files/?q=smtpscan
