I’ve used DNS records to add my domain to proton mail and iCloud mail. It worked flawlessly for over one year now my DNS records are not working anymore. They sent me an email which reads that my MX and SPF and DKIM records are incorrect now but I haven’t touched my records for over half a year. When I try to look them up on mxtoolbox it shows no records. When I try to verify my domain in the proton mail web interface it says it can’t be verified and I should try again in a hour. I’ve tried removing and readding records. Nothing works. I waited for days and it didn’t change.