Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
stu.edu
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-01 12:28:14 UTC · ↺ Refresh
MX Hostnames
- stu-edu.mail.protection.outlook.com
MX Priorities
- stu-edu.mail.protection.outlook.com: 0
A / AAAA Records
- 141.193.213.21 (no PTR)
- 141.193.213.20 (no PTR)
Mail Server IPs
- 52.101.9.5 ↩ mail-mn2pr04cu00205.inbound.protection.outlook.com
- 52.101.50.10 ↩ mail-mw2pr02cu00502.inbound.protection.outlook.com
- 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
- 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
- 2a01:111:f403:f912:: ↩ mail-cy5pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c91d:: ↩ mail-mw2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c931:: ↩ mail-sn1pr02cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
dns51.cloudns.net support.cloudns.net 2026032503 7200 1800 1209600 3600
Primary NS (mname)
dns51.cloudns.net
Admin Email (rname)
support@cloudns.net
Serial
2026032503
Refresh
7200s
Retry
1800s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
dns51.cloudns.net
dns54.cloudns.net
dns53.cloudns.net
dns52.cloudns.net
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_s36767456.fdmarc.net ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];ri=3600;fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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- d365mktkey=apMUeulSBm7lcWLJDJTsSs3Y7g4sHVqA9BCBY2XNUdkx
- d365mktkey=ZByaEgi0xl02YEmlUjfWMHGL3zqhpJz0v6v7xHmWYuUx
- jrmbrc0nmprprkfwyvtwm0xz53mdldx4
- google-site-verification=vFOBHe7K5lFsX5B77046CZ6l6LNkhkDVrgZIfASDxmI
- SPFv=spf1 include:_s36767456.fdmarc.net ~all
- d365mktkey=JYu3HfUxv6cKy3OLHwx5Wdnujtd5SvMinHnyJhdA63Yx
- google-site-verification=tx5VRQ8RaK86913dVWFw8vo0G91BE7z28jSEjoFowD8
- d365mktkey=D2ySTBpr0X1C3kJYczMvQF5H5xkSgwKQNYNLwvxl714x
- _t6ystw4ty2ha6j5x4s11eut4o38iqqa
- d365mktkey=cCn7uGymBNuO8ygKfiqHGav6xE0yMxMBjyGqPYSxtVQx
- d365mktkey=JvR2mnR0jp4wuIRK6yA9eWSqSKpZd6STUQjKzbebAucx
Full email verification for stu.edu
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