Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
upenn.edu
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-23 13:29:10 UTC · ↺ Refresh
MX Hostnames
- mxb-00390e01.gslb.pphosted.com
- mxa-00390e01.gslb.pphosted.com
MX Priorities
- mxb-00390e01.gslb.pphosted.com: 10
- mxa-00390e01.gslb.pphosted.com: 10
A / AAAA Records
- 23.185.0.4 (no PTR)
- 2620:12a:8000::4 (no PTR)
- 2620:12a:8001::4 (no PTR)
Mail Server IPs
- 148.163.133.158 ↩ mx0a-00390e01.pphosted.com
SOA Record
Raw SOA
ipam1.nnn.upenn.edu hostmaster.upenn.edu 2002402357 10800 3600 604800 600
Primary NS (mname)
ipam1.nnn.upenn.edu
Admin Email (rname)
hostmaster@upenn.edu
Serial
2002402357
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
adns4.upenn.edu
adns6.upenn.edu
adns5.upenn.edu
adns1.nnn.upenn.edu
dns1.udel.edu
dns2.udel.edu
adns2.nnn.upenn.edu
adns3.nnn.upenn.edu
SPF Record
✓ Soft Fail (~all)
v=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:spf.protection.outlook.com include:spf.penno365.isc.upenn.edu ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;fo=1;rua=mailto:[email protected];ruf=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
5 records- SPFv=spf1 include:%{ir}.%{v}.%{d}.spf.has.pphosted.com include:spf.protection.outlook.com include:spf.penno365.isc.upenn.edu ~all
- KO71GJZC894IG1PGQC0AIXUV2G6A8EXBGSMTW1QX
- atlassian-domain-verification=maiZsC5JWjh1XYgMeCPA+Eu/1WPEcyn+n7TzXs5ukNzEV/GQRRHFl4jgohfUpHvV
- docusign=78297198-f708-4232-b63b-9ce516ae54a1
- google-site-verification=USSLz8fKaD900NdBD87OEjo0zVYS1RwVyebE0-rN1II
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