What is the name of the domain?
What is the error number?
550 5.7.350
What is the error message?
gmail.com suspects your message is spam and rejected it.
What is the isssue you’re encountering
OUR BUSINESS CANNOT SEND EMAILS TO GMAIL
What steps have you taken to resolve the issue?
WE CHECKED dns , spf ,spam rate , IP reputation domain reputation , dmarc
What feature, service or problem is this related to?
I don’t know
What are the steps to reproduce the issue?
WE NEED TO FIND OUT WHAT MAY CAUSED THE ISSUE IN THE SETTING MAYBE BECAUSE ALL CHECKED CAME BACK CLEAR AND WE HAVE NO ISSUE WITH THE DOMAIN