mail.dcu.ie

Valid Email Server
Domain Lookup › mail.dcu.ie

Domain Overview

DNS: ✓ 5d ago Checker: ✓ 5d ago
mail.dcu.ie
Yes
✓ Yes
Google
No
Yes
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-05-28 02:07:57 UTC · ↺ Refresh

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MX Hostnames

  • alt3.aspmx.l.google.com
  • alt4.aspmx.l.google.com
  • alt2.aspmx.l.google.com
  • alt1.aspmx.l.google.com
  • aspmx.l.google.com

MX Priorities

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

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 108.177.123.27 ↩ lcscld-in-f27.1e100.net
  • 2800:3f0:4003:c0f::1a (no PTR)
  • 172.253.116.26 ↩ dj-in-f26.1e100.net
  • 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
  • 64.233.180.26 ↩ pe-in-f26.1e100.net
  • 2607:f8b0:4004:c23::1b ↩ yuiadrs-in-f27.1e100.net
  • 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
  • 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
  • 173.194.76.26 ↩ ws-in-f26.1e100.net
  • 2a00:1450:400c:c00::1b ↩ ws-in-f27.1e100.net

SOA Record

No SOA record found.

Nameservers (NS)

No nameservers found.

SPF Record

✓ Strict (-all)
v=spf1 include:_spf.google.com ip4:136.206.1.100 ip4:136.206.8.13 ip4:136.206.217.82 ip4:136.206.217.129 ip4:52.31.29.196 ip4:54.229.2.165 include:spf.protection.outlook.com include:servers.mcsv.net -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=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

7 records
  • adobe-idp-site-verification=2536add4e894408f353318f2a5f4774fe76fc5fa9444ae17ae0c99f5deefd54f
  • google-site-verification=CY6iP5nNpX5U5bNslUXIDk3Bbi-ps6XD73IUoR7UMWo
  • peoplexd-domain-verification=B19AF9F6F596C2890BC2
  • SPFv=spf1 include:_spf.google.com ip4:136.206.1.100 ip4:136.206.8.13 ip4:136.206.217.82 ip4:136.206.217.129 ip4:52.31.29.196 ip4:54.229.2.165 include:spf.protection.outlook.com include:servers.mcsv.net -all
  • MS=9B06A30DA94697D70C22218810F2DEE901513E11
  • access-domain-verification=77aa817f39ce2ce9c6bc31173b5c8a7a360997d199bd0ce8ce77af800aba4f4b
  • access-domain-verification=cda39350eeb3c17dbd43699824bb6031941a1002cdf6935e92865b14cbaf95ac
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