Nmap scan report for mx2-us2.ppe-hosted.com (67.231.154.163) Host is up (0.051s latency). Other addresses for mx2-us2.ppe-hosted.com (not scanned): 148.163.129.51 rDNS record for 67.231.154.163: mx2-us1.ppe-hosted.com Not shown: 998 closed tcp ports (reset) PORT STATE SERVICE VERSION 25/tcp open smtp? | fingerprint-strings: | Hello: | 220-mx1-us1.ppe-hosted.com - Please wait... | mx1-us1.ppe-hosted.com - Welcome to PPE Hosted ESMTP Server | Syntax: EHLO hostname. Please provide the following IP address when reporting problems: 208.76.253.234 | NULL: | 220-mx1-us1.ppe-hosted.com - Please wait... |_ mx1-us1.ppe-hosted.com - Welcome to PPE Hosted ESMTP Server |_smtp-commands: SMTP: EHLO 521 5.5.1 Protocol error. Please provide the following IP address when reporting problems: 208.76.253.234\x0D 587/tcp open smtp Postfix smtpd | ssl-cert: Subject: commonName=*.ppe-hosted.com/organizationName=Proofpoint, Inc./stateOrProvinceName=California/countryName=US | Subject Alternative Name: DNS:*.ppe-hosted.com | Not valid before: 2023-11-21T00:00:00 |_Not valid after: 2024-11-20T23:59:59 |_ssl-date: TLS randomness does not represent time |_smtp-commands: mx1-us1.ppe-hosted.com, PIPELINING, SIZE 268435456, ETRN, STARTTLS, ENHANCEDSTATUSCODES, 8BITMIME, DSN 1 service unrecognized despite returning data. If you know the service/version, please submit the following fingerprint at https://nmap.org/cgi-bin/submit.cgi?new-service : SF-Port25-TCP:V=7.92%I=7%D=5/16%Time=66467BD4%P=x86_64-redhat-linux-gnu%r( SF:NULL,6E,"220-mx1-us1\.ppe-hosted\.com\x20-\x20Please\x20wait\.\.\.\r\n2 SF:20\x20mx1-us1\.ppe-hosted\.com\x20-\x20Welcome\x20to\x20PPE\x20Hosted\x SF:20ESMTP\x20Server\r\n")%r(Hello,DA,"220-mx1-us1\.ppe-hosted\.com\x20-\x SF:20Please\x20wait\.\.\.\r\n220\x20mx1-us1\.ppe-hosted\.com\x20-\x20Welco SF:me\x20to\x20PPE\x20Hosted\x20ESMTP\x20Server\r\n501\x20Syntax:\x20EHLO\ SF:x20hostname\.\x20Please\x20provide\x20the\x20following\x20IP\x20address SF:\x20when\x20reporting\x20problems:\x20208\.76\.253\.234\r\n"); Device type: general purpose Running (JUST GUESSING): OpenBSD 5.X (86%) OS CPE: cpe:/o:openbsd:openbsd:5.8 Aggressive OS guesses: OpenBSD 5.8 (86%) No exact OS matches for host (test conditions non-ideal). Network Distance: 14 hops Service Info: Host: Hosted TRACEROUTE (using port 23/tcp) HOP RTT ADDRESS 1 0.19 ms 208.76.251.177.rdns.ColocationAmerica.com (208.76.251.177) 2 0.58 ms gw.mcom-colocationamerica.com (208.64.231.81) 3 0.71 ms r2b4.n1.p1401.lax.multacom.net (64.69.46.11) 4 ... 5 0.93 ms be3271.ccr41.lax04.atlas.cogentco.com (154.54.42.102) 6 ... 8 9 49.71 ms atl-bb1-link.ip.twelve99.net (62.115.137.54) 10 49.35 ms proofpoint-ic-352024.ip.twelve99-cust.net (62.115.184.227) 11 ... 12 49.56 ms atl-b2-link.ip.twelve99.net (62.115.114.33) 13 59.73 ms atl-b2-link.ip.twelve99.net (62.115.114.33) 14 49.99 ms mx2-us1.ppe-hosted.com (67.231.154.163) OS and Service detection performed. Please report any incorrect results at https://nmap.org/submit/ . Nmap done: 1 IP address (1 host up) scanned in 32.81 seconds