Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
armstrong-plumbing.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 09:09:49 UTC · ↺ Refresh
MX Hostnames
- armstrongplumbing-com02c.mail.protection.outlook.com
MX Priorities
- armstrongplumbing-com02c.mail.protection.outlook.com: 0
A / AAAA Records
- 141.193.213.20 (no PTR)
- 141.193.213.21 (no PTR)
Mail Server IPs
- 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
- 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 52.101.194.15 ↩ mail-ch4pr21cu00107.inbound.protection.outlook.com
- 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
- 2a01:111:f403:f912:: ↩ mail-cy5pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
SOA Record
Raw SOA
ernest.ns.cloudflare.com dns.cloudflare.com 2399335098 10000 2400 604800 1800
Primary NS (mname)
ernest.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399335098
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ernest.ns.cloudflare.com
natasha.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:secureserver.net -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; fo=1
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
8 records- google-site-verification=CWFkGHZBPPa0M6lrdhc-1W4hHSWg-GZuG2ZqUnPPZJ8
- google-site-verification=WNk9ZykY3yW03hzu4uyHDBU4t1qaP6LlH7Kg-Pkl-jY
- google-site-verification=ijtFo2vPkiYh94Xqa7X7-gLa1Z5G1qEqifP0hdSyV9I
- SPFv=spf1 include:secureserver.net -all
- wpe-verification=armstrongplprd
- MS=ms37003007
- brevo-code:770fdcccd8fdbac0b653efc1d06cd734
- google-site-verification=7Ac66gqPTiphiuacXZV9vaHW-S108EDeslyVZfUkU94
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