Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
csn.edu
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-26 17:54:07 UTC · ↺ Refresh
MX Hostnames
- mx2.csn.edu
- mx1.csn.edu
MX Priorities
- mx1.csn.edu: 10
- mx2.csn.edu: 10
A / AAAA Records
- 23.185.0.4 (no PTR)
- 2620:12a:8000::4 (no PTR)
- 2620:12a:8001::4 (no PTR)
Mail Server IPs
- 131.216.24.201 ↩ mx1.csn.edu
- 131.216.24.202 ↩ mx2.csn.edu
SOA Record
Raw SOA
ns1.csn.edu hostmaster.csn.edu 2018011459 1200 600 1209600 3600
Primary NS (mname)
ns1.csn.edu
Admin Email (rname)
hostmaster@csn.edu
Serial
2018011459
Refresh
1200s
Retry
600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns1-08.azure-dns.com
ns2-08.azure-dns.net
ns3-08.azure-dns.org
ns2.csn.edu
ns1.csn.edu
ns4-08.azure-dns.info
SPF Record
✓ Strict (-all)
v=spf1 include:spf1.csn.edu include:spf2.csn.edu include:spf3.csn.edu include:spf.protection.outlook.com include:sendgrid.net include:_spf.messagegears.net include:_spf.qualtrics.com a:mx.collegenet.com -all
📊 DNS lookups: 9/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected],mailto:[email protected]; rf=afrf; pct=100; ri=86400
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
12 records- 98DC8B6C6E996F2551BDAE93D557F37AE32CBD48E3DC648FD28597DF0094266A
- adobe-idp-site-verification=daa6ee2d416a3392a7448929a55f4a48bcb70ed08293548bf4609da9f738891d
- csn.edu=ca3-432f7a7ed952491e8958f9993b768c30
- SPFv=spf1 include:spf1.csn.edu include:spf2.csn.edu include:spf3.csn.edu include:spf.protection.outlook.com include:sendgrid.net include:_spf.messagegears.net include:_spf.qualtrics.com a:mx.collegenet.com -all
- facebook-domain-verification=tt3gml0ii04emot04tth75876bsuco
- cisco-ci-domain-verification=39bfd0fde39bb237642dfbb0372fae4873b5e2d6a11a5075f5200d4e462c88c1
- canva-site-verification=AIp8ueT17lTR9dF92oRY_w
- Google-site-verification=NzRPdI-vX_x66myf8xO69Z6PoswsMYE1_wT6ByRVDPI
- apple-domain-verification=RBqV7uZshFK0zRJE
- zOW356ZZsOsTwTSgZQBgJCdcILgQ49txz5uaOEISXEOEcq8f6i0yxM/OmSDTRtg693B/us+k+7oPdBC5GDsAMw==
- ZOOM_verify_kLL5HAISSraGE1tItJAo3l
- google-site-verification=-W2Ds4NDawc4URx1Kea9w2hEp3tVqwgY92p_aGxCBz4
Full email verification for csn.edu
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