POP3
Nmap discovered a POP3 service on the target ports 110 and 995
The running service is Dovecot pop3d
┌──(kali㉿kali)-[~/PEN-200/PG_PRACTICE/postfish]
└─$ telnet $IP 110
Trying 192.168.111.137...
Connected to 192.168.111.137.
Escape character is '^]'.
+OK Dovecot (Ubuntu) ready.
┌──(kali㉿kali)-[~/PEN-200/PG_PRACTICE/postfish]
└─$ openssl s_client -connect $IP:995 -crlf -quiet
Connecting to 192.168.111.137
Can't use SSL_get_servername
depth=0 CN=ubuntu
verify error:num=18:self-signed certificate
verify return:1
depth=0 CN=ubuntu
verify return:1
+OK Dovecot (Ubuntu) ready.Connected, but a valid credential is required to further proceed Resuming on the IMAP server