On Thu, Sep 11, 2025 at 06:08:11PM -0400, John Levine via Postfix-users <[email protected]> wrote:
> It appears that devonmors--- via Postfix-users <[email protected]> said: > >-=-=-=-=-=- > >-=-=-=-=-=- > > > >Can Postfix be tweaked to hide being identified {not the version} by Nmap > >scans? > > I'd guess that changing the mail_name configuration parameter would do it. > Perhaps: > > mail_name = "Zarafa" > > R's, > John I use the following to do this: smtpd_banner = $myhostname ESMTP Without it, the bit where I have it saying "ESMTP" would be "ESMTP Postfix". Nmap still knows that it's Postfix, but it takes much longer to work it out (26.8s rather than 0.5s). cheers, raf _______________________________________________ Postfix-users mailing list -- [email protected] To unsubscribe send an email to [email protected]
