Hello good morning, i was running test with different type of email accounts, new domains, old domains, new accounts and warmed accounts and all emails are landing in spam. Can you please advise.

Hey @Client Nexus, the APIs(tools) usually sends the messages to your receiver email provider like Outlook or Gmail and the provider decides the landing folder. https://learn.microsoft.com/en-us/graph/api/user-sendmail?view=graph-rest-1.0&tabs=http Let me know if this helps.