Forwarding to Gmail

[AtanasM]

I have set up forwarding from Exchange Online account Gmail, but the emails from some providers, for example T-Online are rejected from Gmail. The reason in NDr is that my domain doesn't pass DKIM to send emails from the IP address of Microsoft. I have set up already DMARC,  SPF and DKIM for the domain, but it is ignored by forwarding and it seems that always different IPs from Microsoft are used by forwarding.

[#2]

Hi @AtanasM 

Check your SPF,DKIM and DMARC again here Network Tools From MxToolBox

except mail forwarding is your mail flow configuration work or not?

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[#3]

I found the solution. It is described in section "Relay pool" in the article below:
https://learn.microsoft.com/en-us/microsoft-365/security/office-365-security/outbound-spam-high-risk...