Email are not recieving on 587 submission port: Connection concurrency limit exceeded

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  • Avatar
    Del Corso

    It saved the file with that extension when I created the filter within Plesk - everything works though! 

    Plesk 17.5.3 + CentOS 7

    RPMs:
    fail2ban-0.9.6-centos7.17031414.noarch
    plesk-fail2ban-configurator-17.5.3-cos7.build1705170314.17.noarch

    /etc/fail2ban/filter.d:

    -rw-r----- 1 root root 3241 Mar 14 2017 apache-auth.conf
    -rw-r----- 1 root root 2818 Mar 20 01:18 apache-badbots.conf
    -rw-r----- 1 root root 813 Mar 14 2017 apache-common.conf
    -rw-r----- 1 root root 1863 Mar 14 2017 common.conf
    drwxr-xr-x 2 root root 33 Nov 26 2017 ignorecommands
    -rw-r----- 1 root root 476 Mar 14 2017 plesk-courierlogin.conf
    -rw-r----- 1 root root 1481 Mar 14 2017 plesk-dovecot.conf
    -rw-r----- 1 root root 367 Mar 14 2017 plesk-horde.conf
    -rw-r----- 1 root root 650 Mar 14 2017 plesk-modsecurity.conf
    -rw-r----- 1 root root 529 Mar 14 2017 plesk-panel.conf
    -rw-r----- 1 root root 547 Mar 14 2017 plesk-qmail.conf
    -rw-r----- 1 root root 526 Mar 14 2017 plesk-roundcube.conf
    -rw-r----- 1 root root 666 Mar 14 2017 plesk-wordpress.conf
    -rw-r--r-- 1 root root 132 Mar 20 00:40 postfix-concurrency.local
    -rw-r----- 1 root root 482 Mar 14 2017 postfix-sasl.conf
    -rw-r----- 1 root root 1216 Mar 14 2017 proftpd.conf
    -rw-r----- 1 root root 1286 Mar 14 2017 recidive.conf
    -rw-r----- 1 root root 3160 Mar 14 2017 sshd.conf

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  • Avatar
    Konstantin Annikov

    @Del Corso

    I have checked this path in Debian, Ubuntu, CentOS (different versions of all OSes) and everywhere the file extension is the same (.conf).
    Please update us with OS and Plesk version you are using?  

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  • Avatar
    Konstantin Annikov

    @Del Corso
    Thank you for your input. I have edited the article

     

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  • Avatar
    Miomir Besarabic

    Wrong: postconf smtpd_client_connection_count_limit = 100

    Correct: postconf smtpd_client_connection_count_limit=100

    Filter not accepted in Plesk Regex wrong.

     

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  • Avatar
    Robert Asilbekov

    @Miomir Besarabic  Thank you for the feedback, the article was fixed.

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  • Avatar
    Del Corso

    #7 should be

    fail2ban-regex /var/log/maillog /etc/fail2ban/filter.d/postfix-concurrency.local

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