Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
cofersa.cr
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 01:49:17 UTC · ↺ Refresh
MX Hostnames
- alt2.aspmx.l.google.com
- aspmx.l.google.com
- mx.email-messaging.com
- alt4.aspmx.l.google.com
- alt1.aspmx.l.google.com
- alt3.aspmx.l.google.com
MX Priorities
- alt3.aspmx.l.google.com: 10
- alt4.aspmx.l.google.com: 10
- mx.email-messaging.com: 20
- alt1.aspmx.l.google.com: 5
- alt2.aspmx.l.google.com: 5
- aspmx.l.google.com: 1
A / AAAA Records
- 108.138.128.93 ↩ server-108-138-128-93.jfk50.r.cloudfront.net
- 108.138.128.3
- 108.138.128.83
- 108.138.128.7
Mail Server IPs
- 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
- 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
- 173.194.76.26 ↩ ws-in-f26.1e100.net
- 2a00:1450:400c:c00::1a ↩ ws-in-x1a.1e100.net
- 62.140.31.148 (no PTR)
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
SOA Record
Raw SOA
ns-1466.awsdns-55.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1466.awsdns-55.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1828.awsdns-36.co.uk
ns-301.awsdns-37.com
ns-614.awsdns-12.net
ns-1466.awsdns-55.org
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.mailjet.com include:_spf.google.com include:email-messaging.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; rua=mailto:[email protected]; p=quarantine; pct=20; sp=none
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
⚠ Policy applies to 20% of failing messages only
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
4 records- MS=ms15709703
- duo_sso_verification=WvUWzYWAWCzRyF5EXwAe6neCi1eCaYE2qMMD0Ng6IR6XdJZerD4TMKl80idiGn7S
- knowbe4-site-verification=6796dc559ce2563241fecdf91337e564"
- SPFv=spf1 include:spf.mailjet.com include:_spf.google.com include:email-messaging.com ~all
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