Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
crspark.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 21:34:05 UTC · ↺ Refresh
MX Hostnames
- mailstream-east.mxrecord.io
- mailstream-central.mxrecord.mx
- mailstream-eu1.mxrecord.io
- mailstream-west.mxrecord.io
MX Priorities
- mailstream-west.mxrecord.io: 20
- mailstream-eu1.mxrecord.io: 5
- mailstream-central.mxrecord.mx: 10
- mailstream-east.mxrecord.io: 20
A / AAAA Records
- 198.71.58.179 ↩ mail.crspark.com
Mail Server IPs
- 172.65.220.210 (no PTR)
- 172.65.245.214 (no PTR)
- 172.65.64.78 (no PTR)
- 172.65.213.128 (no PTR)
SOA Record
Raw SOA
aldo.ns.cloudflare.com dns.cloudflare.com 2396945579 10000 2400 604800 1800
Primary NS (mname)
aldo.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2396945579
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
alexa.ns.cloudflare.com
aldo.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx ip4:51.222.141.152 ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; adkim=s; aspf=s
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ No aggregate reports (rua= not set)
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
2 records- atlassian-domain-verification=4Ndep50M4dzDi3UUxvwY1Rogt8vUJ8hirO8Fpq9xIoS28eBdf/RuqX/GXGKUwZ4E
- SPFv=spf1 a mx ip4:51.222.141.152 ~all
Full email verification for crspark.com
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