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451 TLS required, but server does not offer STARTTLS

The error message when we try to send emails with settings set to TLS mandatory in SCOT:

tls.jpg (71.0 kB)
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3 Answers

  • Posted on Jul 30 at 03:03 AM

    Hi Redjie.

    Check this SAP note 2700110 it may help you.

    Regards

    SS

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  • Posted on Jul 30 at 10:16 AM

    Hi Redjie.

    You should follow the configuration steps from SAP Note 1747180, making sure to have the parameter "icm/server_port_*" in order to active the certificate authentication.

    For an eventual authentication error, then use SAP Note 1702785 for analysis.

    Regards,

    Cris

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  • Posted on Aug 01 at 04:27 PM

    Hello Redjie,

    It seems that you have to check at the remote mail server.

    My understanding of the issue is that you are configuring SAP to use TLS while sending emails, but the server does not over such possibility.

    Regards,

    Isaías

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