Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
students.jsums.edu
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-01 14:30:50 UTC · ↺ Refresh
MX Hostnames
- ALT2.ASPMX.L.GOOGLE.COM
- ASPMX3.GOOGLEMAIL.COM
- ALT1.ASPMX.L.GOOGLE.COM
- ASPMX5.GOOGLEMAIL.COM
- ASPMX2.GOOGLEMAIL.COM
- ASPMX4.GOOGLEMAIL.COM
- ASPMX.L.GOOGLE.COM
MX Priorities
- aspmx4.googlemail.com: 30
- aspmx5.googlemail.com: 30
- alt1.aspmx.l.google.com: 20
- aspmx.l.google.com: 10
- aspmx3.googlemail.com: 30
- aspmx2.googlemail.com: 30
- alt2.aspmx.l.google.com: 20
A / AAAA Records
- 143.132.8.102
Mail Server IPs
- 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
- 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
- 173.194.76.27 ↩ ws-in-f27.1e100.net
- 2a00:1450:400c:c00::1a ↩ ws-in-x1a.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 172.253.62.26 ↩ bc-in-f26.1e100.net
- 2607:f8b0:4004:c07::1b ↩ bc-in-f27.1e100.net
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
SOA Record
No SOA record found.
Nameservers (NS)
No nameservers found.
SPF Record
✓ Strict (-all)
v=spf1 include:_spf.google.com include:spf.apparmor.com include:_spf.messagegears.net include:amazonses.com include:spf.constantcontact.com ip4:38.106.32.22/32 ip4:38.106.32.46/32 ip4:143.132.8.108 ip4:52.45.50.190 ip4:104.130.122.12 include:spf.elluciancloud.com ip4:143.132.54.19 ip4:216.235.195.0/24 ip4:156.70.47.247 ip4:199.15.225.199 ip4:208.117.49.214/32 include:spf.watermarkinsights.com -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; pct=100; fo=1; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 1 found
google._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- amazonses:qMjkz6DTuom4lxYUf+Qq75blUrHEji5WJOJXy7ags+I=
- duo_sso_verification=bV9Fsm0vNogTLF7b76DgBedXqZf6zngAM0wefJ7cAPxnMajhOFYRwhqP2ttc0EZn
- SPFv=spf1 include:_spf.google.com include:spf.apparmor.com include:_spf.messagegears.net include:amazonses.com include:spf.constantcontact.com ip4:38.106.32.22/32 ip4:38.106.32.46/32 ip4:143.132.8.108 ip4:52.45.50.190 ip4:104.130.122.12 include:spf.elluciancloud.com ip4:143.132.54.19 ip4:216.235.195.0/24 ip4:156.70.47.247 ip4:199.15.225.199 ip4:208.117.49.214/32 include:spf.watermarkinsights.com -all
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