Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nacc.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-20 11:36:48 UTC · ↺ Refresh
MX Hostnames
- nacc-edu.mail.protection.outlook.com
MX Priorities
- nacc-edu.mail.protection.outlook.com: 0
A / AAAA Records
- 20.36.217.47 (no PTR)
Mail Server IPs
- 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
- 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
- 52.101.41.24 ↩ mail-sj0pr03cu01600.inbound.protection.outlook.com
- 2a01:111:f403:c931:: ↩ mail-sn1pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
- 2a01:111:f403:c91d:: ↩ mail-mw2pr04cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1-08.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1-08.azure-dns.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns1-08.azure-dns.com
ns2-08.azure-dns.net
ns3-08.azure-dns.org
ns4-08.azure-dns.info
SPF Record
✓ Strict (-all)
v=spf1 include:us._netblocks.mimecast.com include:spf.protection.outlook.com ip4:184.106.13.89 a:mail.nacc.edu include:spf.watermarkinsights.com include:_tuf-spf.touchnet.com include:_spf.salesforce.com include:spf.elluciancloud.com ip4:198.187.196.100 ip4:198.187.196.130 ip4:159.183.195.16 -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
5 records- SPFv=spf1 include:us._netblocks.mimecast.com include:spf.protection.outlook.com ip4:184.106.13.89 a:mail.nacc.edu include:spf.watermarkinsights.com include:_tuf-spf.touchnet.com include:_spf.salesforce.com include:spf.elluciancloud.com ip4:198.187.196.100 ip4:198.187.196.130 ip4:159.183.195.16 -all
- MS=ms92701454
- _nhcbp5av4b0cwwppuvq261yjzmxsf0y
- amazonses:SvaI3nTU7A+zrKudYIQZRj+BFV4tAuH89AEgQNUK/L8=
- _7v9zesws368y7f4fy2n7sftbwzn4na5
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