Conexión a EXCHANGE

[hitmank]

Not shown: 1644 closed ports
PORT STATE SERVICE
7/tcp open echo
9/tcp open discard
13/tcp open daytime
17/tcp open qotd
19/tcp open chargen
25/tcp open smtp
53/tcp open domain
80/tcp open http
88/tcp open kerberos-sec
110/tcp open pop3
135/tcp open msrpc
139/tcp open netbios-ssn
143/tcp open imap
389/tcp open ldap
443/tcp open https
445/tcp open microsoft-ds
464/tcp open kpasswd5
587/tcp open submission
593/tcp open http-rpc-epmap
636/tcp open ldapssl
993/tcp open imaps
995/tcp open pop3s
1025/tcp open NFS-or-IIS
1026/tcp open LSA-or-nterm
1027/tcp open IIS
1029/tcp open ms-lsa
1030/tcp open iad1
1031/tcp open iad2
1040/tcp open netsaint
2232/tcp open ivs-video
3268/tcp open globalcatLDAP
3269/tcp open globalcatLDAPssl
3389/tcp open ms-term-serv
6001/tcp open X11:1
6002/tcp open X11:2
6004/tcp open X11:4

El smtp seguro (diria que el puerto 465) no está escuchando