Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rsl-law.co.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-17 21:18:41 UTC · ↺ Refresh
MX Hostnames
- rsl-law.co.uk.bak-mx.uk0103.smtpbak.com
- rsllaw-co-uk0i.mail.protection.outlook.com
MX Priorities
- rsllaw-co-uk0i.mail.protection.outlook.com: 5
- rsl-law.co.uk.bak-mx.uk0103.smtpbak.com: 20
A / AAAA Records
- 104.21.85.169
- 172.67.208.131
- 2606:4700:3037::ac43:d083
- 2606:4700:3030::6815:55a9
Mail Server IPs
- 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
- 52.101.68.29 ↩ mail-dbapr03cu00105.inbound.protection.outlook.com
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
- 2a01:111:f403:ca04::e ↩ mail-db8pr02cu00106.inbound.protection.outlook.com
- 2a01:111:f403:ca04::4 ↩ mail-db4pr02cu00204.inbound.protection.outlook.com
- 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 38.89.254.156 ↩ fe1-r2-in.ch03.l.antispamcloud.com
- 2001:550:2:61::2fc:100 (no PTR)
SOA Record
Raw SOA
ed.ns.cloudflare.com dns.cloudflare.com 2396997890 10000 2400 604800 1800
Primary NS (mname)
ed.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2396997890
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
hattie.ns.cloudflare.com
ed.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:145479147.spf08.hubspotemail.net include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
1 record- SPFv=spf1 include:145479147.spf08.hubspotemail.net include:spf.protection.outlook.com -all
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for rsl-law.co.uk
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits