After moving to cloudflare - my password reset links from my email are not loading

I recently started using cloudflare for my websites and everything seems to work fine however i noticed that when i add my password resent links to my emails that go out to my customers - when they click the link it loads a url9631.example.com/xxxxxx which is a invalid link and users are getting errors
Hmm. We’re having trouble finding that site.
Im using sendgrid to send out my emails.

Hello,

It seems to be an issue caused by DNS configuration related to the subdomain that is used for the password reset link.

You need to access to your Cloudflare Dashboard and go to DNS settings, then verify the DNS record. Make sure that it is pointing to the correct IP address or CNAME.

Thanks it seems like it was an issue with some spf and verifications between sendgrid and dns settings.