After adding the site to Cloudflare my site SMTP mail doesn’t works, here is the screenshot of cloudflare dns & my mail server
After adding a mx record here is a notice
(Some of your DNS only records are exposing IPs that are proxied through Cloudflare. Make sure to proxy all A, AAAA, and CNAME records pointing to proxied records to avoid exposing your origin IP.)
So could you please help me to set up my WordPress site SMTP mail working?