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Thread: How to send external mail

  1. #1
    vinicio is offline Starter Member
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    Default How to send external mail

    Hi,
    Recently I have setup ZCS successfully; now I want to send mail to external accounts, but get some errors.

    In Configuration -> Server -> MTA, at the option "Relay MTA for external delivery" I put the IP of the SMTP server we usually use. That server works with SMTP and user autentication.

    When sending emails to addresses within that server, they arrived. However when sending to accounts at Yahoo, Gmail and other I get the following errors:

    <myemailaddress@gmail.com>: host 72.32.78.209[72.32.78.209] said: 553 sorry,
    that domain isn't in my list of allowed rcpthosts (#5.7.1) (in reply to
    RCPT TO command)


    <myemailaddress@yahoo.com>: host 200.63.212.101[200.63.212.101] said: 554 5.7.1
    <myemailaddress@yahoo.com>: Relay access denied (in reply to RCPT TO
    command)

    What should I do to bring ZCS to send email to external accounts successfully?

    Thanks for your support,
    vinicio

  2. #2
    p24t is offline Moderator
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    Default

    It looks like the config on your other SMTP server isn't allowing the relay, so you need to add your ZCS server to the list of relay-allowed hosts or networks. It's allowing you to send email to local accounts because any SMTP server normally gets email for its own accounts, but many block relay access.

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