I have added Cloudflare to my site and added the correct MX / CNAME records for mail, following numerous threads I have found. All appears to be correct however, I am still unable to SMTP does anyone have an incline of where I may be going wrong.
All DNS records that are related to email traffic MUST be Unproxied () / DNS-only.
In the current state of your DNS records, the third one, the A record for your naked domain, propertymanagementwales.co.uk, will also need to be Unproxied () / DNS-only, as the mail record is a CNAME pointing to that one.
In addition, the last record, the MX record, is also pointing to the same Proxied () record.
Based on the screenshot, here’s the changes to make:
Delete the mail record with type CNAME.
Add a new mail record with type A, pointing to the same IP address as shown in the A record for propertymanagementwales.co.uk.
Replace the Mail server field of your last record, the MX record, to become mail.propertymanagementwales.co.uk