blackpoolsixth.ac.uk

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
blackpoolsixth.ac.uk
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-01 01:35:02 UTC · ↺ Refresh

MX Hostnames

  • ALT1.ASPMX.L.GOOGLE.COM
  • ALT3.ASPMX.L.GOOGLE.COM
  • ALT4.ASPMX.L.GOOGLE.COM
  • ALT2.ASPMX.L.GOOGLE.COM
  • ASPMX.L.GOOGLE.COM

MX Priorities

  • alt3.aspmx.l.google.com: 10
  • alt1.aspmx.l.google.com: 5
  • alt2.aspmx.l.google.com: 5
  • alt4.aspmx.l.google.com: 10
  • aspmx.l.google.com: 1

A / AAAA Records

  • 141.193.213.10
  • 141.193.213.11

Mail Server IPs

  • 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
  • 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
  • 108.177.123.27 ↩ lcscld-in-f27.1e100.net
  • 2800:3f0:4003:c0f::1b (no PTR)
  • 172.253.116.26 ↩ dj-in-f26.1e100.net
  • 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
  • 173.194.76.26 ↩ ws-in-f26.1e100.net
  • 2a00:1450:400c:c00::1b ↩ ws-in-f27.1e100.net
  • 142.250.31.26 ↩ bj-in-f26.1e100.net
  • 2607:f8b0:4004:c0b::1a ↩ bj-in-f26.1e100.net

SOA Record

Raw SOA ns11.ja.net hostmaster.ns11.ja.net 2021031858 43200 3600 3600000 3600
Primary NS (mname)
ns11.ja.net
Admin Email (rname)
hostmaster@ns11.ja.net
Serial
2021031858
Refresh
43200s
Retry
3600s
Expire
3600000s
Minimum TTL
3600s

Nameservers (NS)

ns11.ja.net
ns10.ja.net
ns12.ja.net

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:81.137.113.153 ip4:134.122.102.130 include:_spf.google.com include:authsmtp.com include:spf.protection.outlook.com include:servers.mcsv.net include:amazonses.com include:spf.intacct.com ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 3 found
google._domainkey
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

4 records
  • 1491383734
  • SPFv=spf1 ip4:81.137.113.153 ip4:134.122.102.130 include:_spf.google.com include:authsmtp.com include:spf.protection.outlook.com include:servers.mcsv.net include:amazonses.com include:spf.intacct.com ~all
  • MS=A7E03F9BC66DB591F679D48A5EF2CE896CE5893A
  • intacct-esk=173C44F9CE25CE3EE0634306410A83A9
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