Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
compusysut.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 12:09:05 UTC · ↺ Refresh
MX Hostnames
- compusysut-com.mail.protection.outlook.com
MX Priorities
- compusysut-com.mail.protection.outlook.com: 0
A / AAAA Records
- 198.135.174.162 (no PTR)
Mail Server IPs
- 52.101.41.0 ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 40.93.192.4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 52.101.10.8 ↩ mail-bn1pr04cu00100.inbound.protection.outlook.com
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c946::7 ↩ mail-ch5pr02cu00307.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
- 2a01:111:f403:c902::6 ↩ mail-sj0pr21cu00106.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-521.awsdns-01.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-521.awsdns-01.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1437.awsdns-51.org
ns-1796.awsdns-32.co.uk
ns-391.awsdns-48.com
ns-521.awsdns-01.net
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a ip4:198.135.174.160/29 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;pct=100;fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
4 records- MS=2DC2C3692EF94A2502DA47816AB876B55C79E24C
- MS=ms24411822
- knowbe4-site-verification=fa10f84bc3fe062957c17392537b5988
- SPFv=spf1 mx a ip4:198.135.174.160/29 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com ~all
Full email verification for compusysut.com
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