Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
jmcss.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-01 09:12:25 UTC · ↺ Refresh
MX Hostnames
- jmcss-org.mail.protection.outlook.com
MX Priorities
- jmcss-org.mail.protection.outlook.com: 5
A / AAAA Records
- 34.198.182.201 ↩ ec2-34-198-182-201.compute-1.amazonaws.com
Mail Server IPs
- 52.101.10.2 ↩ mail-bn8pr03cu00202.inbound.protection.outlook.com
- 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ns2.no-ip.com hostmaster.no-ip.com 2015050709 10800 1800 604800 1800
Primary NS (mname)
ns2.no-ip.com
Admin Email (rname)
hostmaster@no-ip.com
Serial
2015050709
Refresh
10800s
Retry
1800s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ns1.no-ip.com
ns4.no-ip.com
ns5.no-ip.com
ns3.no-ip.com
ns2.no-ip.com
SPF Record
✓ Strict (-all)
v=spf1 mx a:mailgun.org a:hybrid.jmcss.org include:spf.protection.outlook.com include:_spf.bbnotify.net include:customerspf.schoolmessenger.com include:k12insightllc.com ip4:69.167.206.130/27 -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ri=86400; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → 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
5 records- apple-domain-verification=77L5Mm4eWSToTd21
- ZOOM_verify_CgUAX6xYTRCvBBfNNrxWxA
- teamviewer-sso-verification=5f437d56f46d41b2b29309d5c4bb5188
- adobe-idp-site-verification=a89525bd8d48b18fe4de0977228c8fe5b6b34c6f64bc65a3a322d20a15abc900
- SPFv=spf1 mx a:mailgun.org a:hybrid.jmcss.org include:spf.protection.outlook.com include:_spf.bbnotify.net include:customerspf.schoolmessenger.com include:k12insightllc.com ip4:69.167.206.130/27 -all
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