stanford.edu
Live email deliverability and anti-spoofing audit. Every value below was read from public DNS at the moment this page was generated.
88/100 — Solid configuration with a few gaps worth closing. Accepts mail · Protected against spoofing · Hosted by Proofpoint
Findings
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spf
SPF has no enforcing terminator, so unauthorised senders are neither marked nor rejected.
v=spf1 ip4:171.67.219.64/27 ip4:171.67.224.0/28 ip4:171.67.43.137 ip4:171.67.43.138 ip4:171.67.43.139 ip4:171.67.43.140 ip4:171.67.43.141 include:_spf.google.com include:_spf.qualtrics.com include:icpbounce.com include:spf.protection.outlook.com ip4:148.163.149.245 ip4:148.163.153.235 ip4:148.163.135.119 ip4:148.163.139.119 ip4:67.231.149.169 ip4:67.231.157.125 ip4:67.231.152.67 ip4:208.84.65.155 ?all
Fix: End the record with -all.
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mta sts
No MTA-STS policy, so inbound mail can be downgraded to an unencrypted connection.
Fix: Publish _mta-sts.stanford.edu and host a policy at https://mta-sts.stanford.edu/.well-known/mta-sts.txt.
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mx
Mail is handled by Proofpoint.
10 mxa-00000d07.gslb.pphosted.com, 10 mxb-00000d07.gslb.pphosted.com
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dmarc
DMARC is enforcing with p=quarantine.
v=DMARC1; p=quarantine; rua=mailto:65cb29d44bd92@ag.dmarcly.com; ruf=mailto:65cb29d44bd92@fo.dmarcly.com;
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dkim
DKIM keys found for 8 selectors.
k1._domainkey, k2._domainkey, s1._domainkey, s2._domainkey, default._domainkey, mail._domainkey, mandrill._domainkey, hs1._domainkey
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dnssec
DNSSEC is validating, so these records cannot be silently tampered with in transit.
AD flag set
Records
| MX | 10 mxa-00000d07.gslb.pphosted.com10 mxb-00000d07.gslb.pphosted.com |
|---|---|
| SPF | v=spf1 ip4:171.67.219.64/27 ip4:171.67.224.0/28 ip4:171.67.43.137 ip4:171.67.43.138 ip4:171.67.43.139 ip4:171.67.43.140 ip4:171.67.43.141 include:_spf.google.com include:_spf.qualtrics.com include:icpbounce.com include:spf.protection.outlook.com ip4:148.163.149.245 ip4:148.163.153.235 ip4:148.163.135.119 ip4:148.163.139.119 ip4:67.231.149.169 ip4:67.231.157.125 ip4:67.231.152.67 ip4:208.84.65.155 ?all |
| DMARC | v=DMARC1; p=quarantine; rua=mailto:65cb29d44bd92@ag.dmarcly.com; ruf=mailto:65cb29d44bd92@fo.dmarcly.com; |
| DKIM selectors | k1, k2, s1, s2, default, mail, mandrill, hs1 |
| MTA-STS | not published |
| TLS-RPT | not published |
| BIMI | not published |
| DNSSEC | validating |
Same data, as JSON, in one request. No SMTP probing, no stored recipient data, 250 free calls a month.
curl "https://mailgrade.dev/v1/domain?domain=stanford.edu"
Also available: /v1/verify?email=… for individual addresses, and
/v1/verify/batch for lists.