Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tsb.co.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 19:27:54 UTC · ↺ Refresh
MX Hostnames
- tsb-co-uk.mail.protection.outlook.com
MX Priorities
- tsb-co-uk.mail.protection.outlook.com: 10
A / AAAA Records
- 23.196.3.209 ↩ a23-196-3-209.deploy.static.akamaitechnologies.com
- 23.196.3.184 ↩ a23-196-3-184.deploy.static.akamaitechnologies.com
- 2600:141b:1c00:32::17d1:481a
- 2600:141b:1c00:32::17d1:4825
Mail Server IPs
- 52.101.99.0 ↩ mail-cwxp265cu00600.inbound.protection.outlook.com
- 52.101.89.0 ↩ mail-lo2p265cu02300.inbound.protection.outlook.com
- 52.101.89.2 ↩ mail-lo3p265cu00302.inbound.protection.outlook.com
- 52.101.99.2 ↩ mail-cwxp265cu00502.inbound.protection.outlook.com
- 2a01:111:f403:ca1a:: ↩ mail-cwxp265cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca0b::1 ↩ mail-lo3p265cu00301.inbound.protection.outlook.com
- 2a01:111:f403:ca1a::1 ↩ mail-cwxp265cu00601.inbound.protection.outlook.com
- 2a01:111:f403:ca0b:: ↩ mail-lo2p265cu02300.inbound.protection.outlook.com
SOA Record
Raw SOA
a18-64.akam.net dmarc.tsb.co.uk 1736 300 300 2419200 300
Primary NS (mname)
a18-64.akam.net
Admin Email (rname)
dmarc@tsb.co.uk
Serial
1736
Refresh
300s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
a11-67.akam.net
a7-66.akam.net
a22-67.akam.net
a1-1.akam.net
a20-66.akam.net
a18-64.akam.net
SPF Record
✓ Strict (-all)
v=spf1 a:mx1.hc4794.c3s2.iphmx.com include:spf.protection.outlook.com a:mr-out.tsb.co.uk a:mx1.bancsabadell.c3s2.iphmx.com a:mx1.hc31-11.eu.iphmx.com ip4:209.61.151.232 ip4:209.61.151.245 ip4:35.189.87.117 -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;pct=100;rua=mailto:[email protected];fo=1;
✓ Reject — strongest protection
📋 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
11 records- google-site-verification=vbna0QOgDdnO8ccWzzxIaiRCqpLT0cl1YGYsmLZBfEY
- adobe-idp-site-verification=bcf00a2d42ecb6d4ae1a146688ae6afb79b7825f20b6a733a46ca1e214a4a7c1
- SPFv=spf1 a:mx1.hc4794.c3s2.iphmx.com include:spf.protection.outlook.com a:mr-out.tsb.co.uk a:mx1.bancsabadell.c3s2.iphmx.com a:mx1.hc31-11.eu.iphmx.com ip4:209.61.151.232 ip4:209.61.151.245 ip4:35.189.87.117 -all
- _github-challenge-TSB-Bank.tsb.co.uk=828cab01d9
- apple-domain-verification=xQGnQ2FjOTu7mhpR
- docker-verification=5e4cbe1b-d3f1-4a0c-8970-3a4a4412251a
- atlassian-domain-verification=e6vR4FBEnunFRwN4zYARBd4XM4sWaaNNM1LmZD/skZce8b2yHGpcLSn/vWp97fBl
- Dynatrace-site-verification=0822d43e-1fa6-4595-a748-058f2029d2b0__o6jt69ri5k3ugek7lhsrck1t1l
- MS=ms51144294
- adobe-sign-verification=4aa3d12e844d766211ceed1a5799d41c
- 671699863-7547125
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