Postfix - help

  • Hello,


    A hacker was able to use the server to spam pc. It is installed in version 1.2.1 imscp.
    OVH has blocked port 25.
    I changed the master.cf and main.cf files as I could.
    Since all mail transfer type are blocked.
    The error message in the postqueue is: (temporary failure. Command output: /usr/bin/maildrop: Unable to create a dot-lock at domaine.com/dossier/30998.0.ns370186.


    main.cf


    master.cf


    I ask for a little help.

  • I think the spam mails are sended through php (customer website)..


    PS: I've moved the thread to offtopic -> Linux & Co.