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Setup relay to send email from different domain RRS feed

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    Hi Everyone,

    We have a requirement here to setup a smtp server to send emails out from SAP system.

    using exchange server 2016 and the relay server is Cisco ironport.

    Customer sending emails using any email address using our domain email address  to any external or internal recipients without any issues.

    When they try to send using our partner domain email address (from:parnter@domain.com) it is failed

    how can i make it work.

    Please help

    Thanks, Venkatesh. "Hardwork Never Fails"

    Tuesday, November 19, 2019 10:08 AM
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    Hi

    You probably need authentication to send as the other address.

    Hope this helps. Please remember to click “Mark as Answer” on the post that helps you, and to click “Unmark as Answer” if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

    Tuesday, November 19, 2019 4:46 PM
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    Hi, 

    You can create a dedicated Receive connector on Exchange server to specify the network hosts that are allowed to anonymously relay messages. Only specific IP addresses are allowed to use this connector to re-route emails through the Exchange 2016.

    You can check this article for more details about: Allow anonymous relay on Exchange servers

    Regards,

    Lydia Zhou

    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Wednesday, November 20, 2019 5:20 AM
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    Hi,

    What is the error message they are getting when they try send email.

    have your tried with sending email through telnet.

    HP

    Wednesday, November 20, 2019 1:53 PM
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    Just checking in to see if above information was helpful. If you have any questions or need further help on this issue, please feel free to post back.

    Regards,

    Lydia Zhou

    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.

    Monday, November 25, 2019 10:53 AM
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