1rfc.co.uk

Valid Email Server
Domain Lookup › 1rfc.co.uk

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
1rfc.co.uk
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-30 04:29:41 UTC · ↺ Refresh

MX Hostnames

  • eu-smtp-inbound-1.mimecast.com
  • eu-smtp-inbound-2.mimecast.com

MX Priorities

  • eu-smtp-inbound-2.mimecast.com: 10
  • eu-smtp-inbound-1.mimecast.com: 10

A / AAAA Records

  • 188.240.191.169 ↩ server69.interdns.co.uk

Mail Server IPs

  • 195.130.217.211 ↩ eu-smtp-inbound-2.mimecast.com
  • 195.130.217.241 ↩ eu-smtp-inbound-2.mimecast.com
  • 195.130.217.201 ↩ eu-smtp-inbound-2.mimecast.com
  • 91.220.42.201 ↩ eu-smtp-inbound-1.mimecast.com
  • 91.220.42.211 ↩ eu-smtp-inbound-1.mimecast.com
  • 91.220.42.241 ↩ eu-smtp-inbound-2.mimecast.com

SOA Record

Raw SOA ns1.tarragoncloud.co.uk hostmaster.tarragoncloud.co.uk 1752672337 3600 600 604800 3600
Primary NS (mname)
ns1.tarragoncloud.co.uk
Admin Email (rname)
hostmaster@tarragoncloud.co.uk
Serial
1752672337
Refresh
3600s
Retry
600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns3.tarragoncloud.co.uk
ns4.tarragoncloud.co.uk
ns1.tarragoncloud.co.uk
ns2.tarragoncloud.co.uk

SPF Record

✓ Strict (-all)
v=spf1 include:eu._netblocks.mimecast.com include:spf.exclaimer.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1;p=reject;sp=reject;adkim=r;aspf=r;pct=100;fo=1;rf=afrf;ri=86400;ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: reject

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

3 records
  • MS=ms89606016
  • Target: 0ed1fe018a26f9d241e8874d7f88e1b776e8d62e12
  • SPFv=spf1 include:eu._netblocks.mimecast.com include:spf.exclaimer.net -all
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