Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
c3ntro.com
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-31 08:57:35 UTC · ↺ Refresh
MX Hostnames
- c3ntro-com.p20.spamhero.net
- mxa.mailgun.org
- alt1.aspmx.l.google.com
- aspmx.l.google.com
- c3ntro-com.p40.spamhero.net
- alt2.aspmx.l.google.com
- c3ntro-com.p10.spamhero.com
- c3ntro-com.p30.spamhero.net
- alt4.aspmx.l.google.com
- c3ntro-com.mail.protection.outlook.com
- mxb.mailgun.org
- alt3.aspmx.l.google.com
MX Priorities
- alt3.aspmx.l.google.com: 8
- alt4.aspmx.l.google.com: 10
- c3ntro-com.mail.protection.outlook.com: 20
- c3ntro-com.p10.spamhero.com: 0
- c3ntro-com.p20.spamhero.net: 1
- c3ntro-com.p30.spamhero.net: 2
- c3ntro-com.p40.spamhero.net: 3
- mxa.mailgun.org: 10
- mxb.mailgun.org: 10
- aspmx.l.google.com: 5
- alt1.aspmx.l.google.com: 6
- alt2.aspmx.l.google.com: 7
A / AAAA Records
- 199.60.103.11
- 199.60.103.111
Mail Server IPs
- 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
- 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
- 173.194.76.26 ↩ ws-in-f26.1e100.net
- 2a00:1450:400c:c00::1a ↩ ws-in-f26.1e100.net
- 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
- 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
- 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
- 52.101.8.34 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 216.172.106.53 ↩ bolt104a.mxthunder.net
- 209.41.68.167 ↩ bolt104b.mxthunder.net
SOA Record
Raw SOA
pdns07.domaincontrol.com dns.jomax.net 2026032401 28800 7200 604800 3600
Primary NS (mname)
pdns07.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026032401
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
pdns08.domaincontrol.com
pdns07.domaincontrol.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:104.152.200.200 ip4:185.32.76.5 include:_spf.google.com include:servers.mcsv.net include:spf.protection.outlook.com include:spf.acumbamail.com include:5505410.spf08.hubspotemail.net include:fdspfus.freshemail.io ~all
📊 DNS lookups: 6/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;sp=none;pct=10;rua=mailto:[email protected];ruf=mailto:[email protected];ri=86400;aspf=r;adkim=r;fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
⚠ Policy applies to 10% of failing messages only
DKIM Selectors
✓ 6 found
google._domainkey
selector1._domainkey
selector2._domainkey
k1._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
14 records- SPFv=spf1 ip4:104.152.200.200 ip4:185.32.76.5 include:_spf.google.com include:servers.mcsv.net include:spf.protection.outlook.com include:spf.acumbamail.com include:5505410.spf08.hubspotemail.net include:fdspfus.freshemail.io ~all
- _vz9qh0kijf83yk7by3yssrcg804uxmo
- cisco-ci-domain-verification=67b134f394388976966896b17bc8c498b354fc867ff52fc9fe6f8116bf7bb46b
- Acumbamail-domain-verification: d842bf34-76f1-11eb-9ab5-005056bd5094
- B728J7X5UMZ4ORL65NW8R82TNYHDTT4R7XIVZ4YH
- _68wx53f06vpy9n9coc1w6xhsi6g8usn
- notion-domain-verification=bRnF1xufVb51kdtlSosA6WbvXoOzrAlbRJoSuH4upIr
- msfpkey=2ez5wb0pp2uvnd4kfp7eij82t
- MS=ms90378700
- 0RRIUPGQRDLRJN6W3T54LR9EQZZ3B6OAPLXDDYGR
- google-site-verification=CAhwuDOunlINcWRb635Y5WmUYsFyrn4xgU6bh7Pr898
- MS=ms77010629
- docusign=3aeac721-752c-4941-aa63-cc980116e829
- google-site-verification=8V3yps9J_0NzXmOadDnkWc_gjAUswffQYhFR8yhPNNM
Full email verification for c3ntro.com
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