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Thread: MTA internal domain authentication

  1. #1
    kebold is offline Starter Member
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    Default MTA internal domain authentication

    Hi everybody,

    I'm a new users
    I've searched in the forum for an answer to my problem, but I didn't find it. If you think that an old thread can help me, please tell me the link

    I have zimbra Network edition on my Sles 10 server.
    I Have some problem with authentication.

    If from an external machine I try to send an email (by telnet or by a mail client) to a zimbra internal domain, zimbra don't request me the authentication.
    If, also from an external machine, I try to send an email to an external email address, zimbra request me to authenticate.

    I would like that zimbra ask me to authenticate also if I would like to send an email to an internal zimbra domain address.
    How can I do that?

    here my MTA server configuration:
    Enable authentication: checked
    TLS authentication only: disable
    Web Mail MTA hostname: myhostname
    web mail mta port: 25
    Relay MTA for external delivery: the ip of the external mail server (in this case is a Mailscanner)
    MTA trusted networks: 127.0.0.0/8 myserversubnet

    I'm sorry for my english.
    Thanks for yours help

    Regards

  2. #2
    fulltears is offline Junior Member
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    Default

    I also have this question.
    MTA trusted networks: 127.0.0.0/8 mta's IP/32
    I find that I can send internal mail successfully without password through client like Outlook Express at external lan. I worried about the security issue, I hope it has been resolved and any tips would be greatly appreciate.

  3. #3
    phoenix is offline Zimbra Consultant & Moderator
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    Default

    Quote Originally Posted by fulltears View Post
    I also have this question.
    MTA trusted networks: 127.0.0.0/8 mta's IP/32
    I find that I can send internal mail successfully without password through client like Outlook Express at external lan. I worried about the security issue,...
    What security issue would that be, don't you trust your users?

    Quote Originally Posted by fulltears View Post
    I hope it has been resolved and any tips would be greatly appreciate.
    Did you try some of the solutions in the forums?
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

  4. #4
    fulltears is offline Junior Member
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    I trust my users but some hackers.
    Actually the question was proposed by our users. If someone can use anybody's email to ask for something, people can't distinguish the truth. I think password auth is very important.

    I followed some steps from the thread "ZIMBRA SMTP AUTH problem " , but there are some error and the mta can't work, I still try and hope to find more details.
    Anyway, thanks for your reply

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