Hi there

I configured the MTA with Enable authentication and TLS authentication only. Everything works well, all the mail client have to set "My outgoing server (SMTP) requires authentication" and use 465 (SSL) to send mail.

Now i found that I can telnet to port 25 (from and LAN machine) and do send mail without any authentication (the mail client still required)

I still control my trusted network list.

Any ideas?