Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
lincoln.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-23 00:20:46 UTC · ↺ Refresh
MX Hostnames
- lincoln-edu.mail.protection.outlook.com
MX Priorities
- lincoln-edu.mail.protection.outlook.com: 5
A / AAAA Records
- 216.21.12.80 ↩ 216-21-12-80.customer.totaluptime.net
Mail Server IPs
- 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
- 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
- 52.101.41.58 ↩ mail-sj0pr02cu00102.inbound.protection.outlook.com
- 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
- 2a01:111:f403:c931:: ↩ mail-sn1pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f902:: ↩ mail-bl2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c927::1 ↩ mail-bn8pr05cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f912:: ↩ mail-cy5pr03cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ns2.lincoln.edu rschmidt.lincoln.edu 1773348090 10800 3600 604800 10800
Primary NS (mname)
ns2.lincoln.edu
Admin Email (rname)
rschmidt@lincoln.edu
Serial
1773348090
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
10800s
Nameservers (NS)
ns2.lincoln.edu
ns1.lincoln.edu
SPF Record
✓ Strict (-all)
v=spf1 include:amazonses.com include:_spf.samanage.com include:sfsolutionsmail.com include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;
⚠ p=none — monitoring only, no enforcement
📋 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:amazonses.com include:_spf.samanage.com include:sfsolutionsmail.com include:spf.protection.outlook.com -all
- _7ql8179abpkpzdvc40dfrclgnz4xp00
- apple-domain-verification=RVdndl9UlettShW9
- MS=ms46975406
- solarwinds-service0desk-verification=0cabd1faaa352c055319982a7992a5d3
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