Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
exertis.co.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 20:02:36 UTC · ↺ Refresh
MX Hostnames
- bb-mail.exertis.co.uk
- exertis-co-uk.mail.protection.outlook.com
- bb-mail1.exertis.co.uk
MX Priorities
- bb-mail.exertis.co.uk: 20
- bb-mail1.exertis.co.uk: 30
- exertis-co-uk.mail.protection.outlook.com: 10
A / AAAA Records
- 15.197.68.15
- 3.33.183.8
Mail Server IPs
- 195.171.30.42 ↩ bb-mail.exertis.co.uk
- 195.171.30.51 ↩ bb-mail1.micro-p.com
- 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 52.101.68.5 ↩ mail-du2pr03cu00105.inbound.protection.outlook.com
- 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
- 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:ca04::7 ↩ mail-db4pr02cu00307.inbound.protection.outlook.com
- 2a01:111:f403:ca09::4 ↩ mail-am0pr04cu00504.inbound.protection.outlook.com
- 2a01:111:f403:ca09::1 ↩ mail-as9pr07cu00301.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.instradns.com root.instra.com 2014050601 28800 7200 604800 86400
Primary NS (mname)
ns1.instradns.com
Admin Email (rname)
root@instra.com
Serial
2014050601
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
ns2.instradns.com
ns3.instradns.com
ns1.instradns.com
SPF Record
✓ Strict (-all)
v=spf1 mx include:spf.protection.outlook.com include:_spf-dc12.successfactors.com include:spf.uk.exclaimer.net ip4:20.0.234.31 ip4:172.187.111.20 -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected];ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
10 records- teamviewer-sso-verification=385b158e840c426c8afe59930bc605f0
- MS=ms38308655
- MS=ms95709436
- SPFv=spf1 mx include:spf.protection.outlook.com include:_spf-dc12.successfactors.com include:spf.uk.exclaimer.net ip4:20.0.234.31 ip4:172.187.111.20 -all
- b8e7ece7fbf251732069c5081ef9273f93679d293c3d9cc353
- 465734797b16ca9207c08ad0ba0931145c3b62a63b44e4e9e0
- pKNl7ya65cQsIgPWbmOpRJT+NPtRV+OG8jr/4GxL3atchtlWMFKNstTHSKNwODzjGx5fmfueCMsaAAKKynZcLg==
- smartsheet-site-validation=xBZPmMY02P0A6zf933pt-lGlVIG_Cs94
- google-site-verification=AHLNw3EH-SGrH1Hf9_DDmNjwWlnPlRp0qAzhxgT1RHM
- apple-domain-verification=epDBOrYDEfQSL8rS
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