Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tesu.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-26 05:15:15 UTC · ↺ Refresh
MX Hostnames
- tesu-edu.mail.protection.outlook.com
MX Priorities
- tesu-edu.mail.protection.outlook.com: 10
A / AAAA Records
- 162.252.213.77 (no PTR)
Mail Server IPs
- 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
- 52.101.11.17 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
- 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
- 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns20.digicertdns.com dns.digicertdns.com 2009010465 43200 3600 1209600 180
Primary NS (mname)
ns20.digicertdns.com
Admin Email (rname)
dns@digicertdns.com
Serial
2009010465
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns12.dnsmadeeasy.com
ns13.dnsmadeeasy.com
ns14.dnsmadeeasy.com
ns15.dnsmadeeasy.com
ns10.dnsmadeeasy.com
ns11.dnsmadeeasy.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:192.107.43.78 ip4:205.235.80.96/27 ip4:148.51.134.96/27 ip4:148.51.134.128/26 ip4:198.187.196.100 ip4:192.107.43.46 include:spf.symplicity.com include:mail.zendesk.com a:smtpout.cm-hosting.com a:mci-smtp.hylandcloud.com a:pit-smtp.hylandcloud.com include:spf.protection.outlook.com -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected],mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]; rf=iodef; fo=1; pct=100; ri=86400
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected],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
11 records- google-site-verification=NfOuinA3ahh7QkMPg7PC-41L5FXD2IDx8RE-tfUUga0
- jamf-site-verification=00Ae0vMAFV4oReogKPG7ZA
- bf0qr8io16miufrpt8l95stv53
- duo_sso_verification=nVB11p52FYAfPQcXh4qTotynwEEcNKfimdYdFo7PsgOQm7cxPiRh7XJL2vzdTvmu
- google-site-verification=NHsFuZlOqMWKgN5SNIRWccWHPUNwHzORD9wP0_TOIv8
- SPFv=spf1 ip4:192.107.43.78 ip4:205.235.80.96/27 ip4:148.51.134.96/27 ip4:148.51.134.128/26 ip4:198.187.196.100 ip4:192.107.43.46 include:spf.symplicity.com include:mail.zendesk.com a:smtpout.cm-hosting.com a:mci-smtp.hylandcloud.com a:pit-smtp.hylandcloud.com include:spf.protection.outlook.com -all
- amazonses:/bH60DDHvkjYod6liuuIImNWR3oy40h7Fsx/rfHOBGM=
- apple-domain-verification=4B0xpPV5BKP32JR4
- MS=ms50239174
- SFMC-Z3YfK8c8NwAUV1S-v7HSyHxhDJCquV7j1CmrhZ2r
- XVRbojYvzoaH1+NWCY3EuL5jUKtqho7bCOri/7fL+7HWgAyIFFVwsYfTUOmHTVDj7RG3xEKclx/wV8eRNOxWTw==
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