Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cmcss.net
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 07:41:52 UTC · ↺ Refresh
MX Hostnames
- mxa-00645f01.gslb.pphosted.com
- mxb-00645f01.gslb.pphosted.com
MX Priorities
- mxb-00645f01.gslb.pphosted.com: 0
- mxa-00645f01.gslb.pphosted.com: 0
A / AAAA Records
- 104.26.7.225 (no PTR)
- 104.26.6.225 (no PTR)
- 172.67.71.150 (no PTR)
- 2606:4700:20::681a:7e1 (no PTR)
- 2606:4700:20::681a:6e1 (no PTR)
- 2606:4700:20::ac43:4796 (no PTR)
Mail Server IPs
- 205.220.178.43 ↩ mx0b-00645f01.pphosted.com
- 205.220.166.43 ↩ mx0a-00645f01.pphosted.com
SOA Record
Raw SOA
buck.ns.cloudflare.com dns.cloudflare.com 2399465002 10000 2400 604800 1800
Primary NS (mname)
buck.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399465002
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
wanda.ns.cloudflare.com
buck.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:104.255.146.52 ip4:205.220.178.43 ip4:205.220.166.43 include:spf0.cmcss.net -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected],mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 3 found
google._domainkey
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- apple-domain-verification=yfKxybBtcUKXwvmG
- e2ma-verification=vsqfb
- google-site-verification=uIZV29YvLMLFX-bdm7GArxG0ltHQ50z8nGDvCNG8zic
- SPFv=spf1 ip4:104.255.146.52 ip4:205.220.178.43 ip4:205.220.166.43 include:spf0.cmcss.net -all
- aMwcb58yErsXagZSDpLbvClldPZSYkkEBdjex916q34GrUr4qvA1moX3Re+5UPok0AfXzoMlOu+Ct9D3GZrv3Q==
Full email verification for cmcss.net
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits