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using 3rd party mail server for C4c marketing campaigns?

Dear All,

The customer would like to know if they can use a 3rd party mail server for C4C marketing campaigns.

My understanding and correct me if i am wrong is that C4C marketing campaigns use SAP - C4C mail servers to handle the outgoing mails. The only thing that can be configured at that level is the sub-domain to be used as a sender email and the dkim entry.

Do you know if 3rd party mail server can be used with C4C marketing campaigns and if there are any integrations for 3 party mail servers and marketing campaigns?

Best Regards,


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1 Answer

  • Best Answer
    Sep 30, 2017 at 06:38 AM


    If you are using email campaigns in Cloud For Customer, the emails are sent technically by SAP's infrastructure. Semantically the emails are sent from the customer with customer's FROM address etc.

    These emails are sent with a DKIM signature.

    Because the emails contain in the FROM address the domain of the customer, you must add the public DKIM key (written in the documentation of the Fine Tuning activity for "Mass E-Mailing") in your DNS.

    REASON for this is the following:

    If the receiving mail server gets a DKIM signed email, the server determines the FROM domain (= customer's domain), calls the DNS in order to get the DKIM key for this FROM domain, creates an own signature of the received mail with usage of the public DKIM key.

    If both signatures are identical, the receiving mail server knows that the mail was really sent by the FROM address.

    You have to add the DKIM key (as written in the documentation of the Fine Tuning activity for "Mass E-Mailing") to your DNS.

    If the DNS is hosted by a service provider the service provider has to add this DKIM key for your domain.


    For marketing mailings SAP strongly recommends to use a sub-domain and NOT the official customer domain.

    E.g. instead of using the customer should created a sub-domain like or

    Only for this sub-domain the DKM key will be added to the DNS.

    Hope this helps.



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