Hi @Ramki
Add the sending IP Addresses of the partner domain's mail servers to ABC.COM 's SPF record in external DNS and that will authorize those servers to send as ABC.COM
Make sense?
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Hello Team
people in my partner organization would like to send email from my domain name
like Abc.com is my domain and xyz.com is my partner domain. they want to send email as username@jaswant .com
and i dont want to allow their Public IP to whitelisted in ABC.com. instead i would go SPF or DKIM.
Since SPF and DKIM is new to me. i am interested to implement either SPF or DKIM . could you please assist me on this
Hi @Ramki
Add the sending IP Addresses of the partner domain's mail servers to ABC.COM 's SPF record in external DNS and that will authorize those servers to send as ABC.COM
Make sense?
In this situation, SPF or DKIM isn't used to verify the email sent from xyz.com to your domain. Because the email is sent from your server rather than your partner. The SPF is used to prevent email be blocked on recipient mail server.
When xyz.com relay email from your organization, the SPF is used to prevent email(relay from your Exchange server) be blocked on other mail server rather than mail server.
If you want to deploy SPF, you can follow those two article(one for Exchange online and other for Exchange on-premises). For more additional information, you can confirm with your DNS provider:
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