rmcs.co.uk

Valid Email Server
Domain Lookup › rmcs.co.uk

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
rmcs.co.uk
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-25 05:32:44 UTC · ↺ Refresh

MX Hostnames

  • rmcs-co-uk.mail.protection.outlook.com

MX Priorities

  • rmcs-co-uk.mail.protection.outlook.com: 5

A / AAAA Records

  • 77.72.1.40 ↩ devaron-lon1.krystal.uk

Mail Server IPs

  • 52.101.99.2 ↩ mail-cwxp265cu00502.inbound.protection.outlook.com
  • 52.101.89.0 ↩ mail-lo2p265cu02300.inbound.protection.outlook.com
  • 52.101.89.2 ↩ mail-lo3p265cu00302.inbound.protection.outlook.com
  • 52.101.99.0 ↩ mail-cwxp265cu00600.inbound.protection.outlook.com
  • 2a01:111:f403:ca1a:: ↩ mail-cwxp265cu00500.inbound.protection.outlook.com
  • 2a01:111:f403:ca0b::2 ↩ mail-lo0p265cu00202.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

SOA Record

Raw SOA ns1.livedns.co.uk admin.rmcs.co.uk 1666354962 10800 3600 604800 3600
Primary NS (mname)
ns1.livedns.co.uk
Admin Email (rname)
admin@rmcs.co.uk
Serial
1666354962
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns3.livedns.co.uk
ns2.livedns.co.uk
ns1.livedns.co.uk

SPF Record

✓ Strict (-all)
v=spf1 ip4:77.72.1.40 ip4:88.208.252.232 include:spf.protection.outlook.com include:authsmtp.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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

3 records
  • MS=ms60558229
  • SPFv=spf1 ip4:77.72.1.40 ip4:88.208.252.232 include:spf.protection.outlook.com include:authsmtp.com -all
  • as=1566465339
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 rmcs.co.uk

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits