[ViggoQuan]

Hello,
How can I find the email addresses of a domain? For example, I want to know what e-mails are there with domain name “example.com”.
Can I use Telnet tool for this purpose?
I did:
 

Code:

$ nc -v "MyTarget.com" 110
nc: timeout while connecting to X-X-X-X.ptr4.stackcp.net (X.X.X.X) 110 [pop3]
nc: 2a07:7800::152 (2a07:7800::152) 110 [pop3] open

Other ports are open too:

Code:

nc: 2a07:7800::152 (2a07:7800::152) 995 [pop3s] open
nc: 2a07:7800::152 (2a07:7800::152) 993 [imaps] open
nc: 2a07:7800::152 (2a07:7800::152) 465 [submissions] open
nc: 2a07:7800::152 (2a07:7800::152) 143 [imap2] open
nc: 2a07:7800::152 (2a07:7800::152) 110 [pop3] open
nc: 2a07:7800::152 (2a07:7800::152) 25 [smtp] open