Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
mosaic.co
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-09-23 05:01:44 UTC · ↺ Refresh
MX Hostnames
- mosaic-co.mail.protection.outlook.com
MX Priorities
- mosaic-co.mail.protection.outlook.com: 0
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 52.101.41.21 ↩ mail-sj2pr05cu00305.inbound.protection.outlook.com
- 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
- 52.101.10.12 ↩ mail-bn1pr21cu00204.inbound.protection.outlook.com
- 2a01:111:f403:f909::1 ↩ mail-bn0pr02cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f909::3 ↩ mail-bnypr03cu00103.inbound.protection.outlook.com
- 2a01:111:f403:f909::5 ↩ mail-bn0pr04cu00805.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.markmonitor.com hostmaster.markmonitor.com 2024090603 86400 3600 2592000 172800
Primary NS (mname)
ns1.markmonitor.com
Admin Email (rname)
hostmaster@markmonitor.com
Serial
2024090603
Refresh
86400s
Retry
3600s
Expire
2592000s
Minimum TTL
172800s
Nameservers (NS)
ns3.markmonitor.com
ns4.markmonitor.com
ns5.markmonitor.com
ns6.markmonitor.com
ns7.markmonitor.com
ns1.markmonitor.com
ns2.markmonitor.com
SPF Record
✓ Strict (-all)
v=spf1 mx a a:awsexchangep1.staff.iaccap.com ip4:44.192.0.48 ip4:52.70.174.149 include:spf.protection.outlook.com include:servers.mcsv.net -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
21 records- MS=ms38175461
- knowbe4-site-verification=03d2edad437dda618683d39971e95b44
- ctlSDvDHlj61GhFn5uvyEaEJizUSCyplmvNiC9sKfpoMBDn34Jg29EEe8CWP5bo8GoPwXXR1sUJXlxXKbg+yhg==
- notion_verify_JfRVLB259KuEGHuxnXrg
- contractworksverify=36060ee9f7343ed9df1932e82173c310
- 3vmk3s2fg95w2pvqwfwy1spd1cptyrbk
- h1-domain-verification=UGekmybnYbCCow39PnvKbiCVVSj4t6WhoEuVmoDjjqm8tzTW
- SPFv=spf1 mx a a:awsexchangep1.staff.iaccap.com ip4:44.192.0.48 ip4:52.70.174.149 include:spf.protection.outlook.com include:servers.mcsv.net -all
- apple-domain-verification=aF4VKqHgzLTEtT62
- slack-domain-verification=naveOPzNHmQgIwvranwWuqhhRZeGbHFdCUWeJWSF
- google-site-verification=f71S8NOxZn1IWu9v3-7_nB-2Psgo6s-3u8ort3bisKg
- adobe-idp-site-verification=4d443bb146b2a60fc0c0216c899a6ef9baa971cc3c36ac4b3020b4719b5c2e82
- ZOOM_verify_CIwmQN8cTvWb3S4-fx5w6A
- mgverify=cb9df9be14b0503dc8b55b69e19d1d28571683aa407de65bb8b0fb106859c8b9
- 8kft85w2zld37b1bjxjgkbb8nlcjj6wx
- onetrust-domain-verification=ff2f3496139c489caf395eea02f73b58
- teamviewer-sso-verification=7383f5767ab545e18dccb3c04ecbb71d
- google-site-verification=hmXj_qAIpZGlikVzOKgRcYGqXIPvCpeXgkLjHnpSFWY
- h1-domain-verification=bRhZKLFxSuya67KedP9gmjgnDBwd4SdkxDgQrvpQ9bFsJ9DF
- cl1qpg2c4ldx7jgdf69m4d7lg3m92ggc
- atlassian-domain-verification=KigsAEVkmgr/JXhCcoXb4tDaWhpkA7Ji1lb5UXH1E8m5N5cZXnqwJk9rAjw83ON3
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