Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
stringfellow.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-17 18:08:35 UTC · ↺ Refresh
MX Hostnames
- stringfellow-com.mail.protection.outlook.com
MX Priorities
- stringfellow-com.mail.protection.outlook.com: 10
A / AAAA Records
- 162.159.134.42 (no PTR)
Mail Server IPs
- 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
- 52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
- 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
- 52.101.41.22 ↩ mail-sj2pr05cu00406.inbound.protection.outlook.com
- 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:c801::1 ↩ mail-sn1pr0501cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
- 2a01:111:f403:f905::3 ↩ mail-dm5pr02cu00203.inbound.protection.outlook.com
SOA Record
Raw SOA
ns23.worldnic.com namehost.worldnic.com 126021818 10800 3600 604800 3600
Primary NS (mname)
ns23.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126021818
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns24.worldnic.com
ns23.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:173.162.26.90 include:spf.protection.outlook.com include:spf.myconnectwise.net include:_spf.e2ma.net include:_spf.salesforce.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; adkim=r; aspf=r; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 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
5 records- SPFv=spf1 ip4:173.162.26.90 include:spf.protection.outlook.com include:spf.myconnectwise.net include:_spf.e2ma.net include:_spf.salesforce.com -all
- openai-domain-verification=dv-3dj4uPvRGw80yqBMMSg8HW2M
- anthropic-domain-verification-v1bsrj=VXVtC2yFIqyzJf6a9tM46hHfs
- e2ma-verification=ioc
- mandrill_verify.l7tv4SWThPT41e8qepA2ZA
Full email verification for stringfellow.com
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