Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sbctc.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 23:18:37 UTC · ↺ Refresh
MX Hostnames
- mx.sbctc.edu
- sbctc-edu.mail.protection.outlook.com
MX Priorities
- sbctc-edu.mail.protection.outlook.com: 0
- mx.sbctc.edu: 10
A / AAAA Records
- 35.166.111.98 ↩ ec2-35-166-111-98.us-west-2.compute.amazonaws.com
- 34.218.72.165
Mail Server IPs
- 52.101.10.8 ↩ mail-bn1pr04cu00100.inbound.protection.outlook.com
- 52.101.41.22 ↩ mail-sj2pr05cu00406.inbound.protection.outlook.com
- 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
- 52.101.8.34 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:f907::1 ↩ mail-dm1pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c902::6 ↩ mail-sj0pr21cu00106.inbound.protection.outlook.com
- 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
- 134.39.2.200 ↩ mx.sbctc.edu
SOA Record
Raw SOA
ns-23.awsdns-02.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-23.awsdns-02.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1063.awsdns-04.org
ns-1762.awsdns-28.co.uk
ns-23.awsdns-02.com
ns-723.awsdns-26.net
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:134.39.2.200 ip4:134.39.2.227 include:amazonses.com include:spf.protection.outlook.com include:servers.mcsv.net ip4:23.21.109.197 ip4:23.21.109.212 ip4:147.160.167.0/26 ip4:74.122.104.0/22 -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; rf=afrf; pct=100; ri=86400
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
k1._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
9 records- SPFv=spf1 mx ip4:134.39.2.200 ip4:134.39.2.227 include:amazonses.com include:spf.protection.outlook.com include:servers.mcsv.net ip4:23.21.109.197 ip4:23.21.109.212 ip4:147.160.167.0/26 ip4:74.122.104.0/22 -all
- 64f8ade71dde463c3095b30004510b89.sbctc.edu
- NhcDDJWSbT8lFw9dxowLxpxGK2te6+xTStZ+MpN4z8gFcxFBA1p4v2hr8mEjGVE3iuS8oj7Wle60Brps0SyQLQ==
- ce2058190d3e90f22fa4cf8f7d027a599be654b6258bb38303b6fadd1aba9ce
- facebook-domain-verification=8adbpbjlbxjym6kse4j71iy65tw8kd
- google-site-verification=17QkJQov-yxylrwOXSLM1wV-5cyIgnDnsW04geiBfMQ
- google-site-verification=3yO20MhDPtqUOR2u0HbxTiRgqpgw2ot4V9TEAG4Raig
- site24x7-domain-verification=953ad84d09a6b8e7a6c611cd72a554d8
- site24x7-domain-verification=f113b980ab17de757bfe82dc09fa42a0
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