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  1. #1
    Join Date
    Mar 2005

    sender verify callout problems

    I´m seeing that a lot of servers are rejecting my emails showing this error:
    451 - could not verify sender (callout)

    Reverse DNS is working fine, and I couldnt see any kind of error on

    I´m using EXIM/CPANEL. I tried to send from one cpanel server to another cpanel server and I´m still getting error.

    Any suggestion?


  2. #2
    Join Date
    Mar 2005
    Ok, I think Ive fixed the problem...
    After removing the death RBL from my server I could send without problems.

    Thanks anyway!

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