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SMTP error An authentication function returned an error

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  • mgori
    Junior Member
    • Jan 2021
    • 1

    #1

    SMTP error An authentication function returned an error

    Gents,
    I'm running Zabbix in a docker container. I'm using zabbix version 5.2. I configured email configuration in order to send an email notification. When I checked the action log report I have the following error "An authentication function returned an error". I'm using starttls as connection security. Please any advise to fix this problem.
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