Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
coresolutions.us
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 11:18:37 UTC · ↺ Refresh
MX Hostnames
- alt4.aspmx.l.google.com
- alt3.aspmx.l.google.com
- aspmx.l.google.com
- alt1.aspmx.l.google.com
- alt2.aspmx.l.google.com
MX Priorities
- alt3.aspmx.l.google.com: 10
- alt4.aspmx.l.google.com: 10
- alt1.aspmx.l.google.com: 5
- alt2.aspmx.l.google.com: 5
- aspmx.l.google.com: 1
A / AAAA Records
- 208.113.233.248
Mail Server IPs
- 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
- 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
- 173.194.76.27 ↩ ws-in-f27.1e100.net
- 2a00:1450:400c:c00::1b ↩ ws-in-x1b.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
- 142.251.179.26 ↩ pd-in-f26.1e100.net
- 2607:f8b0:4004:c21::1b ↩ pe-in-f27.1e100.net
SOA Record
Raw SOA
izabella.ns.cloudflare.com dns.cloudflare.com 2399576177 10000 2400 604800 1800
Primary NS (mname)
izabella.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399576177
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
izabella.ns.cloudflare.com
lewis.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.google.com include:spf.protection.outlook.com include:_u.coresolutions.us._spf.smart.ondmarc.com include:_spf.d3usmail.nethelpdesk.com include:spfa.cpmails.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; sp=none; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]; adkim=r; aspf=r; fo=1; rf=afrf; ri=3600
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 1 found
google._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
8 records- MS=947DEAD35C47E5A888456F40A3036E94AE48FB5C
- MS=ms66863978
- amazon-business-verification=3bf8c1fa9205d47969e7fc5eea9931787b62abc190c602eb1bb113c399e47fe9
- apple-domain-verification=4H9RdEDUH3PxW02x
- google-site-verification=ukMo3kJgTEgd0-zb6Ev08xG5zM8DWGMy__rrMDlw9_g
- openai-domain-verification=dv-G6KDPO4KJq1my2ex6YTsQQfk
- stripe-verification=8B79917DED241B101DF74725EF50BE8D37926E9861308A2A526C6C0CB13E0DE9
- SPFv=spf1 include:_spf.google.com include:spf.protection.outlook.com include:_u.coresolutions.us._spf.smart.ondmarc.com include:_spf.d3usmail.nethelpdesk.com include:spfa.cpmails.com ~all
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