Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
hcplonline.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 03:59:35 UTC · ↺ Refresh
MX Hostnames
- hcplonline-org.mail.protection.outlook.com
MX Priorities
- hcplonline-org.mail.protection.outlook.com: 0
A / AAAA Records
- 64.26.82.54 (no PTR)
Mail Server IPs
- 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
- 52.101.9.24 ↩ mail-bl2pr02cu00400.inbound.protection.outlook.com
- 52.101.41.26 ↩ mail-sj0pr03cu01702.inbound.protection.outlook.com
- 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
nsa.lib.md.us dnsadmin.soc.lib.md.us 2026030601 3600 1800 604800 3600
Primary NS (mname)
nsa.lib.md.us
Admin Email (rname)
dnsadmin@soc.lib.md.us
Serial
2026030601
Refresh
3600s
Retry
1800s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
nsb.lib.md.us
nsc.lib.md.us
nsa.lib.md.us
SPF Record
✓ Soft Fail (~all)
v=spf1 mx ip4:204.148.128.14 ip4:64.26.82.40 ip4:64.26.82.36 a:mail.hcplonline.org include:spf.protection.outlook.com include:mailgun.org include:spf.mailjet.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
4 records- 5t0p5cufescqg32okuv77gqpdc
- SPFv=spf1 mx ip4:204.148.128.14 ip4:64.26.82.40 ip4:64.26.82.36 a:mail.hcplonline.org include:spf.protection.outlook.com include:mailgun.org include:spf.mailjet.com ~all
- I+jmb5EwyVRkfoNISJODnYo42nd1ycKuJZqkyxXGxvssyinkcUESMGsZLl4Nx/SeUuRRnXA5Aw+si5ZA8qVYwQ==
- gdtuc66qoonc8p6mgj621qd8gh
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