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Thread: Can not block unknown hostname

  1. #1
    alexebner is offline Active Member
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    Default Can not block unknown hostname

    I have a ZCS 7.2.3
    My configuration for rejecting hosts is

    >zmprov gacf | grep zimbraMtaRestriction
    zimbraMtaRestriction: reject_invalid_hostname
    zimbraMtaRestriction: reject_non_fqdn_hostname
    zimbraMtaRestriction: reject_non_fqdn_sender
    zimbraMtaRestriction: reject_unknown_hostname
    zimbraMtaRestriction: reject_unknown_sender_domain


    But the invalid hostnames are not rejected

    ae@ae-desktop:~$ telnet mail.********.at 25
    Trying 111.222.333.444...
    Connected to mail.*********.at.
    Escape character is '^]'.
    220 mail.*******.at ESMTP Postfix
    helo mail.sedfsdfsfwefew
    250 mail.*******.at
    mail from: ae@******.at
    250 2.1.0 Ok
    rcpt to: admin@******.at
    250 2.1.5 Ok
    data
    354 End data with <CR><LF>.<CR><LF>
    subject: 434343
    .
    250 2.0.0 Ok: queued as B5780BC1DB

    I can not find what is wrong. Do someone have an idea ?

  2. #2
    xuyanru's Avatar
    xuyanru is offline Active Member
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    Default

    I`m puzzled with this feature for a long time too.
    If your telnet client address is NOT included in the MTA networks, you should be authenticated first and login before you send email on this server.
    I think it is disrelated with zimbraMtaRestriction configuration.
    Just do it.
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