Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sustechpr.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 07:45:50 UTC · ↺ Refresh
MX Hostnames
- sustechpr-com.mail.protection.outlook.com
MX Priorities
- sustechpr-com.mail.protection.outlook.com: 10
A / AAAA Records
- 45.32.218.16 ↩ sustechpr.tempurl.host
- 2001:19f0:5400:23fa:5400:5ff:fede:fee8 (no PTR)
Mail Server IPs
- 52.101.9.5 ↩ mail-mn2pr04cu00205.inbound.protection.outlook.com
- 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
- 2a01:111:f403:c902::3 ↩ mail-sj0pr03cu01703.inbound.protection.outlook.com
- 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:f908::2 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
- 2a01:111:f403:f90f:: ↩ mail-sa9pr04cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.siteground.net dnsadmin.serv01.siteground124.com 2020011177 86400 7200 3600000 86400
Primary NS (mname)
ns1.siteground.net
Admin Email (rname)
dnsadmin@serv01.siteground124.com
Serial
2020011177
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
86400s
Nameservers (NS)
ns2.siteground.net
ns1.siteground.net
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:184.154.224.8 include:_spf.google.com include:sustechpr.com.spf.auto.dnssmarthost.net include:spf.protection.outlook.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; aspf=r; adkim=r;
⚠ p=none — monitoring only, no enforcement
📋 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
2 records- MS=ms81842433
- SPFv=spf1 ip4:184.154.224.8 include:_spf.google.com include:sustechpr.com.spf.auto.dnssmarthost.net include:spf.protection.outlook.com ~all
Full email verification for sustechpr.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits