Email Setup doesnt work, whats wrong ?

Discussion in '3CX Phone System - General' started by soamz, Jul 9, 2017.

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  1. soamz

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    Im on the 3cx license page, on the setup page, it shows this error.
    But whats wrong ?

    The email is correct and password , port, everything is correct.
     

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  2. cobaltit

    cobaltit Active Member

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    The error is clear there, it says 'Invalid HELO name. Basically whenever a SMTP client contacts a SMTP server it introduces itself with a HELO command and its hostname. Apparently your mail server doesn't like whatever 3CX using. Since I don't believe this is exposed as a configuration item in 3CX, your only option is to either configure your server to loosen its SMTP client validation, whitelist your PBX, or use a different mail server.
     
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