Domain Overview
DNS: ✓ 14h ago
Checker: ✓ 14h ago
blockllc.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-20 13:50:14 UTC · ↺ Refresh
MX Hostnames
- usb-smtp-inbound-1.mimecast.com
- usb-smtp-inbound-2.mimecast.com
MX Priorities
- usb-smtp-inbound-1.mimecast.com: 10
- usb-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
- 172.66.172.165 (no PTR)
- 104.20.31.23 (no PTR)
- 2606:4700:10::6814:1f17 (no PTR)
- 2606:4700:10::ac42:aca5 (no PTR)
Mail Server IPs
- 170.10.152.242 ↩ usb-smtp-delivery-2.mimecast.com
- 170.10.150.242 ↩ usb-smtp-delivery-2.mimecast.com
SOA Record
Raw SOA
armfazh.ns.cloudflare.com dns.cloudflare.com 2404608862 10000 2400 604800 1800
Primary NS (mname)
armfazh.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2404608862
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
armfazh.ns.cloudflare.com
jule.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_u.blockllc.com._spf.smart.ondmarc.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;sp=reject;pct=100;fo=1;ri=84600;rua=mailto:[email protected],mailto:[email protected];ruf=mailto:[email protected],mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- anthropic-domain-verification-drdpxt=tDomxnSxexbAvMSX7nq3Dm5hm
- apple-domain-verification=dpx9hr94KQwttzXx
- google-site-verification=GWFIZG6UxVahYwnlgY8LN-CKKyK6L1xJTDpGG00hDTs
- ms-domain-verification=aafc5743-ea0e-4bc3-81e8-c976c952ab0c
- SPFv=spf1 include:_u.blockllc.com._spf.smart.ondmarc.com ~all
Full email verification for blockllc.com
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