smtp.com has no AAAA records.
Apex domains cannot have CNAME records.
Adobe identity provider
Domain verification
adobe-idp-site-verification=cd8dab640ab786a9457c8757f4188cd682dd687a694d1d9c251e9ef54140a0ec
Atlassian
Domain verification
atlassian-domain-verification=QUsZX4LdPWTYZgx09JhShFot27EJnUl/5CyxXFsiGebXl2QD8Fh3zzfkYZJe42Ic
Cloudflare
Internal use
ca3-45a37e403e924bf79c5654db77de6e40
Google
Domain verification
google-site-verification=ro696-ZtDw4t7zojvY0Bn6J_vHGC8cspSNr87MvQK2I
Google
Domain verification
google-site-verification=yx_3sNZXSJJmoeSRx-2KgKtY3QigPtgnlNxJHMfyhxo
Pendo
Domain verification
pendo-domain-verification=503f668d-eeb7-4984-af1f-356cb1abc443
Stripe
Domain verification
stripe-verification=51BEF67C3B1EF40AC20D9413296F7414370646A39E58673F790CA9D173A95E93
Workplace from Meta
Domain verification
workplace-domain-verification=1C1x1SPucfNn1Fr3TGnq5S4CkW6d2K
Yahoo
Domain verification
yahoo-verification-key=Utle3fUFirQWcjoayIFnRNI9Ze5xeLkJVHGiM4SDDOQ=
ns-1304.awsdns-35.org
Amazon Web Services
Route 53
ns-1999.awsdns-57.co.uk
Amazon Web Services
Route 53
ns-5.awsdns-00.com
Amazon Web Services
Route 53
ns-735.awsdns-27.net
Amazon Web Services
Route 53
Zone apex
Start of authority
Email
Serial
2
Refresh
2h
Retry
15m
Expire
14d
Negative cache TTL
1d