Hello, I am a fan of nginx and I really like nginx mail proxy module. I'm having a problem between the authenticated account and the sender when using this module. For better understanding, please see my test below:
root@nginx:~# telnet xx.xx.xx.xx 25 Trying xx.xx.xx.xx ... Connected to xx.xx.xx.xx . Escape character is '^]'. 220 smtp.xxx.xxx ESMTP ready ehlo mail.example.com 250-smtp. xxx.xxx 250 AUTH LOGIN AUTH LOGIN 334 VXNlcm5hbWU6 xxxxxxxxxxxxxxxxxxxxxxxxxx 334 UGFzc3dvcmQ6 xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx 235 2.0.0 OK mail from: ad...@gmail.com 250 OK <ad...@gmail.com> Sender ok rcpt to: ad...@gmail.com 250 OK <ad...@gmail.com> Recipient ok data 354 Start mail input; end with <CRLF>.<CRLF> test test . 250 OK quit 221 Service closing transmission channel Connection closed by foreign host. As you have seen, after successful authentication, I can send email using any account and nginx skips checking if this account matches the previously authenticated account. I want to write more code in the source code of the mail module in nginx to be able to check if this account matches the previously authenticated account, however I don't know C programming nor understand how functions in .c source code files work. Currently my server is being used to spam emails a lot. So I would really appreciate it if you could give me some advice to fix my problem. Thank you very much! Posted at Nginx Forum: https://forum.nginx.org/read.php?2,291574,291574#msg-291574 _______________________________________________ nginx mailing list nginx@nginx.org http://mailman.nginx.org/mailman/listinfo/nginx
