ISP Blocking port 25 VPS SIngapura

Discussion in 'Masalah Teknik dan Keamanan' started by Indofrensolution, 14 Sep 2016.

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  1. Indofrensolution

    Indofrensolution Beginner 2.0

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    Dear Para masta

    Mohon bantuannya saya buat mail server dengan zimbra, dan saya nyoba kirim email ke gmail tidak ke kirim, dan saya check di spam tidak ada juga, apakah ada solusi untuk menganti port 25 to 587, soalnya yang di buka kan portnya 587 oleh pihak isp nya, mohon bantuanya para masta
    /opt/zimbra/libexec/zmmsgtrace -s admin@domaindikau.com
    Tracing messages
    from admin@indofrensolution.com

    zmmsgtrace: total unmatched entries in '/var/log/zimbra.log': 16
    zmmsgtrace: use -debug to see unmatched lines
    Message ID '20160914153045.BAAE726367D@mail.domaindikau.com'
    aadmin@domaindikau.com -->
    admin@domaindikau.com
    Recipient admin@domaindikau.com
    Sep 14 11:30:45 - mail --> 127.0.0.1:10024 (127.0.0.1:10024) status sent
    Sep 14 11:30:48 - mail --> mail.domaindikau.com:7025 (210.16.120.132:7025) status sent

    Message ID '947881186.5.1473868417120.JavaMail.zimbra@domaindikau.com'
    admin@domaindikau.com -->
    datuk02@gmail.com
    Recipient datuk@gmail.com
    Sep 14 11:53:37 - mail.domaindikau.com (210.16.120.132) --> 127.0.0.1:10026 (127.0.0.1:10026) status sent
    Sep 14 11:53:37 - mail --> 127.0.0.1:10032 (127.0.0.1:10032) status sent
     
  2. idnix

    idnix Hosting Guru

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    sudah coba pake alternatif port ?

    Code:
    https://wiki.zimbra.com/wiki/Adding_additional_SMTP_listener_ports
    solusi terakhirnya pake relay yg di sediakan provider
     
  3. GPLHosting

    GPLHosting Expert 2.0

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    VPS SG nya pakai HostUs yg mengikuti policy dari upline nya yaitu Softlayer yg memblok Outbound port 25, sebagai langkah preventif meminimalisir spam.

    Kalau port smtp 25 di blok, kita gunakan port submission 587, dgn langkah2 sbb :

    1. Edit file /opt/zimbra/postfix/conf/master.cf dengan menambahkan baris2 berikut :

    Code:
    submission inet n      -       -       -       -       smtpd
            -o smtpd_etrn_restrictions=reject
            -o smtpd_enforce_tls=yes
            -o smtpd_sasl_auth_enable=yes

    2. Restart postfix
    Code:
    /opt/zimbra/postfix/sbin/postfix reload
    3. Terakhir, cek port submission 587, apakah sudah listening atau belum
    Code:
    lsof -i -n -P |grep 587
    Semoga bermanfaat.


     
  4. Indofrensolution

    Indofrensolution Beginner 2.0

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    Betul om pake host.us, itu yang di tambahkan di bagian mana om ? apakah sesusadah
    smtp inet n - n - - smtpd
    -o smtpd_tls_security_level=may
    -o content_filter=scan:[127.0.0.1]:10030
    # -o smtpd_proxy_filter=[127.0.0.1]:10027
    # -o smtpd_proxy_options=speed_adjust
    Atau sebelumnya ?
     
  5. GPLHosting

    GPLHosting Expert 2.0

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    Bebas.
     
  6. Indofrensolution

    Indofrensolution Beginner 2.0

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    tetap ga mau kirim email keluar @GPLHosting udah saya comba di tambahkan
     

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  7. Indofrensolution

    Indofrensolution Beginner 2.0

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    dan udah saya coba mas cara itu tetap tidak mau bisa tidak port 25 di ganti ke port 587 @idnix
     
  8. GPLHosting

    GPLHosting Expert 2.0

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    Sudah di reload postfix nya ?
     
  9. Indofrensolution

    Indofrensolution Beginner 2.0

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    sudah saya relload postfixnya, dan saya restart vpsnya
     
  10. pluto01

    pluto01 Hosting Guru Web Hosting

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    Coba check port yg digunakan sdh listen belum ?
    Jika sudah coba test telnet mail.domainanda.com 587 misalnya, masuk ga ?
    Ini kirim emailnya pakai mail client apa default port yg digunakan mail client tersebut apa apakah sdh dirubah ke port yg baru?
    Jika semuanya sdh OK, coba test kirim lg sambil lihat maillognya

    Jika saya sich rubahnya simple saja cukup edit /etc/postfix/master.cf
    #smtp inet n - n - - smtpd
    1225 inet n - n - - smtpd

    kemudian
    /etc/init.d/postfix restart

    lalu check
    [root@123 ~]# netstat -tanp|grep 1225
    tcp 0 0 0.0.0.0:1225 0.0.0.0:* LISTEN 2285/master
    [root@123 ~]#
    jadi, nanti kirim emailnya menggunakan port 1225

    Note : yg di atas non panel, sesuaikan di kondisi nya mas, termasuk tutorial2 yg diberikan mastah2 di atas harusnya itu work, jika dilakukan dgn fokus
     
    Last edited: 15 Sep 2016
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