Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
coh.org
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-24 16:33:20 UTC · ↺ Refresh
MX Hostnames
- mxb-00400d01.gslb.pphosted.com
- mxa-00400d01.gslb.pphosted.com
MX Priorities
- mxa-00400d01.gslb.pphosted.com: 10
- mxb-00400d01.gslb.pphosted.com: 10
A / AAAA Records
- 151.152.101.187 (no PTR)
Mail Server IPs
- 205.220.172.156 ↩ mx0b-00400d01.pphosted.com
- 205.220.160.157 ↩ mx0a-00400d01.pphosted.com
SOA Record
Raw SOA
ns22.customer.level3.net dns.level3.net 2026031001 7200 600 2592000 300
Primary NS (mname)
ns22.customer.level3.net
Admin Email (rname)
dns@level3.net
Serial
2026031001
Refresh
7200s
Retry
600s
Expire
2592000s
Minimum TTL
300s
Nameservers (NS)
ns5.customer.level3.net
ns22.customer.level3.net
SPF Record
✓ Soft Fail (~all)
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; aspf=r;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
23 records- teamviewer-sso-verification=fdf0b15d9e5c414c8d4e636255290dba
- docusign=7d59ae0c-3d19-453f-a791-954cd7fec9e3
- SFMC-vzarLskCw4-JAUi3Ppvp1aKEHkXb4zeecz85768b
- atlassian-domain-verification=UNyToiy0Ca0mZgfqDpM83WQUowDJMKnTwdqcRsaLUE0zZu1posaXIXSPEyie/Rvx
- cloudflare_dashboard_sso=a644403beaa070e8de8ad92b2daac6fb
- ms-domain-verification=84b70339-9402-44a5-90c7-924651d4ab6d
- citrix.mobile.ads.otp=opxy385nucd6p1aq09f20v
- amazonses:forcv2m3M8v/2DjFvGpQnV9pz0FuDuWj2PZZYVIsLNQ=
- apple-domain-verification=Cp6wdoaxduifiJzO
- smartsheet-site-validation=qcn3-QUIkskc1JbtLV65KUu1Be1tdkFu
- asv=7eac24618c73209335e5bd8537fdef29
- SPFv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
- google-gws-recovery-domain-verification=53690838
- vmware-cloud-verification-9b5d31a5-0c20-4dd7-850f-509ea3590d25
- docusign=11895e21-23ff-4540-b5d9-6165b8dca720
- google-site-verification=QErcPbcdOuwtT29xi69L0Dn1_tH2uewfaiouXG6OP7c
- QFMcnnp7+yAj+b3WvV7+rpdfiVzxr07nlSrwT/zVjdX8XPCNT2YOpeGvQ8oJ/DsU9m2EEOnMnZVMPo9c9OOrOA==
- MS=ms50694599
- asv=887dc24f4ff2e89f46092823aadc9f20
- dropbox-domain-verification=qg8lw2m4gfd8
- google-gws-recovery-domain-verification=54617502
- cisco-ci-domain-verification=52821d1d2f171e43e44b61d33128d59fda750722ea625e843b27dc887d449bdc
- google-site-verification=5dSqeoXzIVxXjwkkRrt6J-jPysh42EUVs9sO7UIHoaY
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for coh.org
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits