Email rejected per DMARC policy

Email rejected per DMARC policy

Hi,

We've got the return message from zoho like
'host mx.zoho.com[204.141.33.44] said: 550 5.7.1 Email rejected per DMARC policy for circlecloudco.com in reply to end of DATA command'

We're sure our source IP address matches the SPF
the sender domain is *@circlecloudco.com
and receiver is *@legacyfitness.ca
This issue occurs randomly and does not happen every time. Sometimes we can send it successfully
Could you help check the reason for the rejection?