Emails send from lightspeed system do not reach the customer anymore since DNS chan

[robertjansen40]

What is the name of the domain?

neomounts24.nl

What is the issue you’re encountering

emails send from lightspeed system do not reach the customer anymore since DNS chan

What steps have you taken to resolve the issue?

pause Cloudflare then all worked like before

[sjr]

You will need to disable DNSSEC at your registrar or DNS lookups using DNSSEC will fail when you change the nameservers…
https://cf.sjr.dev/tools/check?ad9b989a2bb14219b360d41f8c302427#rdap

Make sure also that any mail-related DNS records are set to “DNS only” and not “Proxied”