Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
hsdm.harvard.edu
Yes
✓ Yes
Proofpoint
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-20 06:07:44 UTC · ↺ Refresh
MX Hostnames
- mx0a-00171101.pphosted.com
- mx0b-00171101.pphosted.com
MX Priorities
- mx0b-00171101.pphosted.com: 100
- mx0a-00171101.pphosted.com: 100
A / AAAA Records
- 23.44.201.233 ↩ a23-44-201-233.deploy.static.akamaitechnologies.com
- 23.44.201.247 ↩ a23-44-201-247.deploy.static.akamaitechnologies.com
Mail Server IPs
- 67.231.156.27 ↩ mx0b-00171101.pphosted.com
- 67.231.148.27 ↩ mx0a-00171101.pphosted.com
SOA Record
Raw SOA
a1-171.akam.net root.hsdm.harvard.edu 2024120701 1200 600 1209600 3600
Primary NS (mname)
a1-171.akam.net
Admin Email (rname)
root@hsdm.harvard.edu
Serial
2024120701
Refresh
1200s
Retry
600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
a1-171.akam.net
a16-64.akam.net
a10-66.akam.net
a11-67.akam.net
a7-65.akam.net
a6-66.akam.net
SPF Record
✓ Soft Fail (~all)
v=spf1 mx ip4:134.174.0.0/16 ip4:128.103.0.0/16 ip4:140.247.0.0/16 ip4:184.107.80.100 ip4:184.107.80.111 ip4:184.107.80.101 ip4:184.107.80.123 ip4:184.107.80.119 ip4:184.107.63.100 ip4:174.142.116.50 ip4:174.142.116.51 ip4:174.142.116.39 ip4:174.142.116.40 include:spf.protection.outlook.com include:_spf.qemailserver.com include:mkt3779.com include:spf.mandrillapp.com include:mail.zendesk.com include:cust-spf.exacttarget.com ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=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: 392 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
8 records- globalsign-domain-verification=C44DEEAC45AB4DC2B5AD0B9B2E5D5803
- SPFv=spf1 mx ip4:134.174.0.0/16 ip4:128.103.0.0/16 ip4:140.247.0.0/16 ip4:184.107.80.100 ip4:184.107.80.111 ip4:184.107.80.101 ip4:184.107.80.123 ip4:184.107.80.119 ip4:184.107.63.100 ip4:174.142.116.50 ip4:174.142.116.51 ip4:174.142.116.39 ip4:174.142.116.40 include:spf.protection.outlook.com include:_spf.qemailserver.com include:mkt3779.com include:spf.mandrillapp.com include:mail.zendesk.com include:cust-spf.exacttarget.com ~all
- v=spf2 include:servers.mcsv.net include:cust-spf.exacttarget.com include:_spf.salesforce.com ?all
- openai-domain-verification=dv-O4X9l9IarsOPSbpRdxvLE7F0
- MS=ms72153924
- M43c7NMkzQzwmJxYCkn8zao4oMdHDwnu5ej+4gIEZLgjajC8YuUq9k/3dfmhJ82YeIXRaQ+YRc13KXhxK1omOw==
- atlassian-domain-verification=ASRKBXyOafZgDCRWh1Ylv34hiOSMgAIoNXs8H57rR3aTkuOD5KwJfUN9G3f7Ah/H
- knowbe4-site-verification=add85bd4aec0e689912e87648cd571bf
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