Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
21stcmri.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 09:32:30 UTC · ↺ Refresh
MX Hostnames
- shared6.accountservergroup.com
MX Priorities
- shared6.accountservergroup.com: 0
A / AAAA Records
- 67.211.209.76 ↩ mail.floatingpoint-systems.com
Mail Server IPs
- 162.215.121.65 ↩ shared6.accountservergroup.com
SOA Record
Raw SOA
dns.site5.com dnsadmin.shared6.accountservergroup.com 2026031934 86400 7200 3600000 86400
Primary NS (mname)
dns.site5.com
Admin Email (rname)
dnsadmin@shared6.accountservergroup.com
Serial
2026031934
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
86400s
Nameservers (NS)
dns2.site5.com
dns.site5.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:162.215.122.230 ip4:162.215.248.146 +a +mx +include:websitewelcome.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 ip4:162.215.122.230 ip4:162.215.248.146 +a +mx +include:websitewelcome.com ~all
Full email verification for 21stcmri.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits