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
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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