coderslab.io

Valid Email Server
Domain Lookup › coderslab.io

Domain Overview

DNS: ✓ 1d ago Checker: ✓ 1d ago
coderslab.io
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-07-01 14:00:10 UTC · ↺ Refresh

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MX Hostnames

  • inbound-smtp.us-east-1.amazonaws.com
  • alt2.aspmx.l.google.com
  • alt3.aspmx.l.google.com
  • aspmx.l.google.com
  • alt4.aspmx.l.google.com
  • alt1.aspmx.l.google.com

MX Priorities

  • aspmx.l.google.com: 1
  • alt3.aspmx.l.google.com: 10
  • alt4.aspmx.l.google.com: 10
  • inbound-smtp.us-east-1.amazonaws.com: 10
  • alt1.aspmx.l.google.com: 5
  • alt2.aspmx.l.google.com: 5

A / AAAA Records

  • 18.238.55.41
  • 18.238.55.7
  • 18.238.55.40
  • 18.238.55.10

Mail Server IPs

  • 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
  • 172.253.157.26 ↩ yubrupd-in-f26.1e100.net
  • 2a00:1450:400c:c23::1a ↩ yubrupd-in-f26.1e100.net
  • 54.197.5.236 ↩ ec2-54-197-5-236.compute-1.amazonaws.com
  • 44.206.9.87 ↩ ec2-44-206-9-87.compute-1.amazonaws.com
  • 44.210.166.32 ↩ ec2-44-210-166-32.compute-1.amazonaws.com
  • 3.211.210.226 ↩ ec2-3-211-210-226.compute-1.amazonaws.com
  • 54.164.173.191
  • 108.177.123.27
  • 2800:3f0:4003:c0f::1b

SOA Record

Raw SOA ns-612.awsdns-12.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-612.awsdns-12.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-612.awsdns-12.net
ns-1334.awsdns-38.org
ns-1870.awsdns-41.co.uk
ns-477.awsdns-59.com

SPF Record

✓ Strict (-all)
v=spf1 include:_spf.google.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; sp=none; pct=100; ri=86400; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none

DKIM Selectors

✓ 1 found
google._domainkey
✓ Public key: 216 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

5 records
  • apple-domain-verification=gZzzdGdMaJoP3mQT
  • google-site-verification=tDEV8cZt1RDqfbp-RRY0guKuiRH2HcMyyepJ_MtS6Tc
  • include:spf.ipzmarketing.com
  • SPFv=spf1 include:_spf.google.com -all
  • SPFv=spf1 include:amazonses.com ~all
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