Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
firstonsite.ca
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-30 00:58:52 UTC · ↺ Refresh
MX Hostnames
- firstonsite-ca.mail.protection.outlook.com
MX Priorities
- firstonsite-ca.mail.protection.outlook.com: 0
A / AAAA Records
- 141.193.213.21 (no PTR)
- 141.193.213.20 (no PTR)
Mail Server IPs
- 52.101.8.42 ↩ mail-dm6pr03cu00402.inbound.protection.outlook.com
- 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
- 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
- 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
- 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f907::1 ↩ mail-dm1pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c931::1 ↩ mail-sa9pr03cu00201.inbound.protection.outlook.com
- 2a01:111:f403:f802::2 ↩ mail-sj2pr05cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
dell.ns.cloudflare.com dns.cloudflare.com 2400206112 10000 2400 604800 1800
Primary NS (mname)
dell.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400206112
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
dell.ns.cloudflare.com
isaac.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:69.77.185.71 ip4:192.31.208.0/24 include:servers.mcsv.net include:spf.protection.outlook.com include:_spf.psm.knowbe4.com include:emailus.freshservice.com include:_spf.psm.knowbe4.com -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=quarantine; pct=100;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
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
15 records- SPFv=spf1 a mx ip4:69.77.185.71 ip4:192.31.208.0/24 include:servers.mcsv.net include:spf.protection.outlook.com include:_spf.psm.knowbe4.com include:emailus.freshservice.com include:_spf.psm.knowbe4.com -all
- apple-domain-verification=ES6TuZ9mizycCpZr
- docusign=13c2c8a8-9f63-4bf5-b185-9e38b3aa5f92
- openai-domain-verification=dv-DGXkWOvMkOAzmLLOdzWJ1MPI
- MS=ms75964135
- qrgB8cVRI4SpYcPEtIObT9hSN7z8NlqHwIqW/lh5jVZUUlAdWzF5niZlWkm+V72g6wlfXbm90JNmyKoEo/z+A==
- atlassian-domain-verification=5u/rpdD6OEafQvVdfn6vsY7XhxkUaVYnoJ7oP/NP2zG1ffd8coanXegrRVQRklQS
- knowbe4-site-verification=80989cef88c5114a209a60cf61df817f
- google-site-verification=VaGe2GAdVT-nYUbwGxXVh63EIClMIg3VKAmgifgoWdQ
- google-site-verification=NcmqvKwCOCUgGRlEyBmQz2sGlRz-szwSHYv2rYOArzI
- anthropic-domain-verification-gy6zy4=bjNKadv9MOX7UJf7ReWsVkNC7
- ms-domain-verification=6860d414-5cdd-4af1-8583-e31b67614642
- 5e8a72f718a1dfac6f22ba7abf251c4c
- MS=7A0A017C4B154F7AB5B92B6B28581EF4BF00C442
- ZOOM_verify_H3orqtu1fBDfBgwLsJgM9t
Full email verification for firstonsite.ca
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