Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
htlf.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 05:45:21 UTC · ↺ Refresh
MX Hostnames
- dc2-mail.umb.com
- toc-mail.umb.com
- mail.umb.com
MX Priorities
- dc2-mail.umb.com: 10
- toc-mail.umb.com: 10
- mail.umb.com: 30
A / AAAA Records
- 23.185.0.4 (no PTR)
- 2620:12a:8001::4 (no PTR)
- 2620:12a:8000::4 (no PTR)
Mail Server IPs
- 198.135.226.43 ↩ dc2-mail.umb.com
- 198.153.253.80 ↩ toc-mail.umb.com
SOA Record
Raw SOA
ns10.umb.com dnsadm.umb.com 42 10800 3600 604800 900
Primary NS (mname)
ns10.umb.com
Admin Email (rname)
dnsadm@umb.com
Serial
42
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
900s
Nameservers (NS)
ns10.umb.com
ns30.umb.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:spf-primary.htlf.com include:spf-secondary.htlf.com include:spf-tertiary.htlf.com include:spf-quaternary.htlf.com ip4:12.189.176.33 ip4:216.131.12.33 ip4:216.197.69.0/24 ip4:216.30.177.0/24 ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 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
10 records- _68am4y9jhlcolis479o6dd82t16h9f1
- apple-domain-verification=1z9WttddgzuC9MC2
- atlassian-sending-domain-verification=96716911-01b9-4424-8cbb-0279bda60c0a
- atlassian-domain-verification=BkgGF9hGbipTdujYytqdAFMQ7Shmf1ZlaGV3zGaeteaPsGtzG6CKJPNfUCz6Xx9V
- smartsheet-site-validation=I6kZTGkCJexjWsfuNEcy6sNwGjNBWmM8
- docusign=051ed87f-f652-4a7e-9c46-eb5f945ce602
- MS=ms28419399
- a73b13f126dd4f3f8fbe760bc783f6b7
- XzzrUi7hHujEFaHusJqTu7oTVuAVXf/Uhg8rUQOIzgAqEwrLN0oxzJ9ER3GXJPOTmnjqBFjkOjO7GoJSFKhJkg==
- SPFv=spf1 include:spf.protection.outlook.com include:spf-primary.htlf.com include:spf-secondary.htlf.com include:spf-tertiary.htlf.com include:spf-quaternary.htlf.com ip4:12.189.176.33 ip4:216.131.12.33 ip4:216.197.69.0/24 ip4:216.30.177.0/24 ~all
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