koalendar.com

Valid Email Server

Domain Overview

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

Checked via [email protected] · 2026-03-18 03:13:26 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 151.101.65.195
  • 151.101.1.195

Mail Server IPs

  • 172.253.116.26 ↩ dj-in-f26.1e100.net
  • 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
  • 142.251.111.27 ↩ bk-in-f27.1e100.net
  • 2607:f8b0:4004:c08::1b ↩ bi-in-f27.1e100.net
  • 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
  • 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
  • 173.194.76.27 ↩ ws-in-f27.1e100.net
  • 2a00:1450:400c:c00::1a ↩ ws-in-f26.1e100.net
  • 108.177.123.27 ↩ lcscld-in-f27.1e100.net
  • 2800:3f0:4003:c0f::1a (no PTR)

SOA Record

Raw SOA curitiba.ns.porkbun.com dns.cloudflare.com 2397077019 10000 2400 604800 1800
Primary NS (mname)
curitiba.ns.porkbun.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397077019
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

fortaleza.ns.porkbun.com
maceio.ns.porkbun.com
salvador.ns.porkbun.com
curitiba.ns.porkbun.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf.mlsend.com include:_spf.google.com include:146633872.spf10.hubspotemail.net ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 3 found
google._domainkey
s1._domainkey
s2._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

9 records
  • MS=3074F4CFE94762F7927D2EC49AB2C904D46694D1
  • ahrefs-site-verification_0d36b394e6aad0f7ac1a947561acd32610ea1f70d5831f6164f28c7dabd0587f
  • ahrefs-site-verification_3df4a30741f6864fd89503e49baf4b4ec0bd845042221f50b9501ef42fc8df39
  • ahrefs-site-verification_58f1932ce76cebb7fca8cf060b545dfee068fdf9dfb7b690038b5ccc32320747
  • google-site-verification=2OZnhkRST_y7nkJ3DdTRhd7ASlc4W4smhwe3sZXygDU
  • google-site-verification=6NRnoForQxQtsry8yt_sXPaY5PChzx8Z8z6KXG2RLxY
  • SPFv=spf1 include:_spf.mlsend.com include:_spf.google.com include:146633872.spf10.hubspotemail.net ~all
  • yahoo-verification-key=K/4Oia2qVZP0w9YeaATXp2vIKHCbG9AA/YeFKiJX9Ho=
  • zoom-domain-verification = 1fe54aea-b0c4-4719-b1fb-9fa60c884f31
Full email verification for koalendar.com

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