Looking maillog i've found several lines like
May 22 13:57:15 servidor smtp_auth: SMTP user
[email protected] : logged in from triband-del-59.180.42.183.bol.net.in [59.180.42.183]
myname is a legal user name of the server
and all emails are from nonexisting mail accounts in my domain.
sendmail is filtered, so I think php doesn't send this emails.
And if I stopped qmail, why qmail queue grows? How to stop mail server at all?
Spam contains
Received: qmail 21199 invoked from network
So the mail is not created by a script (?)
And
Received: from ip-31-170-140-199.kichkas.net (HELO ciugbcphwbi) (31.170.140.199)
by mydomain.com with ESMTPA; 22 May 2014 18:58:40 +0200
But this IP is not the IP of my domain !!!!
I need help indeed.
Thanks