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  1. #1

    How can limit SMTP to sending only authenticated email address ?


    when I add email account in Thunderbird. I have one SMTP connection like ([email protected]) for my email and sending Email. now if I adding the another email for example ([email protected]) without SMTP setting, I can sending email with ([email protected]).

    I want to my server SMTP service stop sending email from ([email protected]) without SMTP setting.

  2. #2
    Join Date
    Oct 2013
    You only want to relay mail for

    What mailserver are you using?

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