https://support.google.com/mail/thread/206272883?hl=en&msgid=206732947 Gmail uses a wait-and-watch policy to ensure any changes made in response to spamming related incidents (if any happened with your domain) are not temporary and it may take several weeks before the sender or the recipient notice a positive change, even more so if the SMTP or outgoing server is a shared server/IP address that also hosts other domains which may continue to engage in dubious practices or you have had any recent spam related incidents. Let me know. Somnath Diamond Product Expert Product Expert and Mentor for Gmail and Google Accounts. Mar 18, 2023 Additionally, can you share the domain name? If you do not wish to post about the domain name, post it separately, leave it on for a minute or so and delete it so that I can receive an email notification and do some checks based on it.