Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
grinnell.edu
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 22:54:43 UTC · ↺ Refresh
MX Hostnames
- mxb-001c8a01.gslb.pphosted.com
- mxa-001c8a01.gslb.pphosted.com
MX Priorities
- mxb-001c8a01.gslb.pphosted.com: 10
- mxa-001c8a01.gslb.pphosted.com: 10
A / AAAA Records
- 132.161.157.120 (no PTR)
Mail Server IPs
- 148.163.158.183 ↩ mx0b-001c8a01.pphosted.com
SOA Record
Raw SOA
ns3.grinnell.edu noc.grinnell.edu 791651567 1200 180 1209600 3600
Primary NS (mname)
ns3.grinnell.edu
Admin Email (rname)
noc@grinnell.edu
Serial
791651567
Refresh
1200s
Retry
180s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns1.netins.net
ns3.grinnell.edu
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; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
15 records- mailerlite-domain-verification=d1f15868b537c4560eb772f6e91189ccdd213b9c
- cisco-ci-domain-verification=589c0730d993fea0535a14cd93912dccd9ffb1d993bd05075c6268c1f97db9ce
- DMEOKWX0VQUZPUF4AMJWYYQQPWOM0PJ5FHWGYVQPB
- xx9wg0wwvj5bs2t764jqh7kw590pflwd
- jamf-site-verification=WoEcmHuoHn23Szo97Nnxlg
- apple-domain-verification=y4Irun78dKl8OPUz
- arcules-domain-verification=zSjppalVBGp54BDoeNjDI2RZjcuyAfjH3yuoIJBCCsW
- facebook-domain-verification=0gv73hgnuopw76zo2sb04v87n8qgd6
- ZOOM_verify_i2Q7KHGIRXKR7GrHWzXDeQ
- docusign=fca67405-e72a-429e-863e-b8510fdef99e
- adobe-idp-site-verification=9ee0a16d32655fecb5241f1dbefe817b4c26d5e4c6ea9473569dab730bfdbb68
- SPFv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com ~all
- 69K2BV9d38UJ9RtgXyVpdazrW4RvwFgea+Zm4eHVoh6p85d88d/g7jjdgVqDAOag6tI5ec6EAFtmMnURLW/B6g==
- google-site-verification=5U4WOpIWl4Os8sDTAV9O99dB0cSqoRJNZEoKZCjCXPQ
- 7v8358rvpg337c1ps55qprfh9xg6hz7z
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