c21city.com.au

Valid Email Server
Domain Lookup › c21city.com.au

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
c21city.com.au
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-27 02:59:00 UTC · ↺ Refresh

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MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 118.88.24.120 ↩ mailforwarder.domaincentral.com.au

Mail Server IPs

  • 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
  • 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
  • 108.177.123.27 ↩ lcscld-in-f27.1e100.net
  • 2800:3f0:4003:c0f::1b (no PTR)
  • 142.251.179.27 ↩ pd-in-f27.1e100.net
  • 2607:f8b0:4004:c09::1a ↩ bh-in-f26.1e100.net
  • 173.194.76.27 ↩ ws-in-f27.1e100.net
  • 2a00:1450:400c:c00::1a ↩ ws-in-x1a.1e100.net

SOA Record

Raw SOA nsw.name-servers.net.au hostmaster.domaincentral.com.au 2020030309 3600 900 1209600 10800
Primary NS (mname)
nsw.name-servers.net.au
Admin Email (rname)
hostmaster@domaincentral.com.au
Serial
2020030309
Refresh
3600s
Retry
900s
Expire
1209600s
Minimum TTL
10800s

Nameservers (NS)

nsw.name-servers.net.au
nsz.name-servers.net.au
nsy.name-servers.net.au
nsx.name-servers.net.au

SPF Record

✗ Missing

No SPF record — domain is unprotected against spoofing.

⚠ No SPF record found. Email servers cannot verify authorized senders.

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 1 found
k1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: k1

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

All TXT Records

1 record
  • v=spf1 include:mailgun.org include:century21.com.au ~all
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