Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
jessup.edu
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 05:54:58 UTC · ↺ Refresh
MX Hostnames
- alt2.aspmx.l.google.com
- alt4.aspmx.l.google.com
- alt1.aspmx.l.google.com
- aspmx.l.google.com
- alt3.aspmx.l.google.com
MX Priorities
- alt1.aspmx.l.google.com: 5
- aspmx.l.google.com: 1
- alt4.aspmx.l.google.com: 10
- alt3.aspmx.l.google.com: 10
- alt2.aspmx.l.google.com: 5
A / AAAA Records
- 50.28.104.28
Mail Server IPs
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 172.253.115.27 ↩ bg-in-f27.1e100.net
- 2607:f8b0:4004:c27::1b ↩ yuiadsk-in-f27.1e100.net
- 173.194.76.27 ↩ ws-in-f27.1e100.net
- 2a00:1450:400c:c00::1a ↩ ws-in-f26.1e100.net
- 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
- 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
SOA Record
Raw SOA
ns1.jessup.edu devnull.sourcedns.com 2026031601 3600 7200 1209600 300
Primary NS (mname)
ns1.jessup.edu
Admin Email (rname)
devnull@sourcedns.com
Serial
2026031601
Refresh
3600s
Retry
7200s
Expire
1209600s
Minimum TTL
300s
Nameservers (NS)
ns2.jessup.edu
ns1.jessup.edu
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_s00428288.autospf.email ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;sp=quarantine;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400;rua=mailto:[email protected],mailto:[email protected];ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 4 found
google._domainkey
default._domainkey
s1._domainkey
s2._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
13 records- atlassian-domain-verification=kY5IbZ1bBXEvq3Jw77618ySNF0TzB6eB1H/umaxfQcfr5r0PmlEXrt0ikntTWADH
- jamf-site-verification=Z0AqIKvoGhnTvz2_26YWAw
- SPFv=spf1 include:_s00428288.autospf.email ~all
- google-site-verification=-uOSpSkuzdfkvXzdp-p9SIbBhcRzlK9vd2p5_Sl5ZN4
- m45dcpub88q4auh0l63550qi82
- adobe-idp-site-verification=eaa6a520-d498-46a5-971e-b58ab43b52fd.
- atlassian-sending-domain-verification=60a7fadd-4425-4bfb-8307-45681df84612
- ZOOM_verify_SB3qrqDMSiGHFRQ07LHjbw
- google-site-verification=Zito2OSADNpDjblK-u6x4Hth-_2gakDZuCNmD8ZBa3c
- apple-domain-verification=4veKCQhwbZW4Rpeu
- facebook-domain-verification=7tzhcti4yjkgzrs0kqb6pid5y7239h
- google-site-verification=9kKy533VX0W7iR7zHWSDVySYxJuin_YWeNkCJN1gwqk
- pardot850423=9ea567f15b73e9de4427d10e65cb7fb980da17537ffc973ff43d8d0375d0f8b1
Full email verification for jessup.edu
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