How to fix address not found gmail usually means the email address you're trying to send a message to is incorrect, inactive, or blocked. To fix this issue, double-check the spelling of the recipient’s email, ensure the domain exists, remove any extra spaces, and verify that the mailbox hasn’t been deleted. Sometimes, Gmail server issues or contact auto-fill errors can also trigger t... https://www.emailsupport.us/blog/gmail-address-not-found/