Domain Overview
DNS: ✓ 20d ago
Checker: ✓ 20d ago
thumbstopper.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-21 04:51:08 UTC · ↺ Refresh
MX Hostnames
- thumbstopper-com.mail.protection.outlook.com
MX Priorities
- thumbstopper-com.mail.protection.outlook.com: 0
A / AAAA Records
- 141.193.213.10 (no PTR)
Mail Server IPs
- 52.101.41.26 ↩ mail-sj0pr03cu01702.inbound.protection.outlook.com
- 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 52.101.41.58 ↩ mail-sj0pr02cu00102.inbound.protection.outlook.com
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f912:: ↩ mail-cy5pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-1258.awsdns-29.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1258.awsdns-29.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-551.awsdns-04.net
ns-1258.awsdns-29.org
ns-1584.awsdns-06.co.uk
ns-330.awsdns-41.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf.salesforce.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];ri=86400;fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
default._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
17 records- browserstack-domain-verification=52a33653-4add-4d5b-9df8-c51879bd13e1
- ea8oomn88hiindi0dok5es0g7l
- knowbe4-site-verification=09acb1ea6b712532a74dc0c7ac30dd1a
- smartsheet-site-validation=4awTN2S1SFMzAwgjpK9cQtIW7o2USJEK
- google-site-verification=HuZGucKTtvnZnDp48NUs42lbNZIcuKH3rHE7Rty3eCE
- slack-domain-verification=UxB8Xmuh8Ac0XQZAyzzQGQ8R8EUs89eVqZnttoIc
- MS=ms90389611
- docusign=c27193f1-8b3d-4a76-90d5-cdf8b429c22d
- sending_domain1032341=50ce1f4885f89645fdc3d3d0056539c1bbe907e20962a54971c5e9cc0fbcf9c7
- docker-verification=2dd6989d-c07c-4ee7-b7df-fa2fc3c7d3c6
- google-site-verification=wyzigyMcyUCWUcRkPpau2ZzVOd83BQba4uS3Aou4K8Q
- adobe-idp-site-verification=048755a80a49d02888e8a70313602b1f441e978085289d0f92d8e508fcc694c6
- cisco-ci-domain-verification=5971f22456606af623af83098006b8e896c51ad7f9c548afa9b510f078924aa2
- 64blbvcvb0bf8uisjubqp1707q
- google-site-verification=-Tb6HvdGN8y2vD90aGbD5UztktBr-V2U6UeHBlSILiU
- miro-verification=311057bda1f267d18c9f1846b9b1255055a62c80
- SPFv=spf1 include:spf.protection.outlook.com include:_spf.salesforce.com -all
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