Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
otis.edu
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 10:15:30 UTC · ↺ Refresh
MX Hostnames
- d161278b.ess.barracudanetworks.com
- d161278a.ess.barracudanetworks.com
MX Priorities
- d161278b.ess.barracudanetworks.com: 20
- d161278a.ess.barracudanetworks.com: 10
A / AAAA Records
- 209.41.65.181 ↩ 209-41-65-181.c7dc.com
Mail Server IPs
- 209.222.82.252 ↩ mail.ess.barracuda.com
- 209.222.82.253 ↩ mail.ess.barracuda.com
- 209.222.82.255 ↩ mail.ess.barracuda.com
SOA Record
Raw SOA
ns11.constellix.com dns.constellix.com 2015010274 43200 3600 1209600 180
Primary NS (mname)
ns11.constellix.com
Admin Email (rname)
dns@constellix.com
Serial
2015010274
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns11.constellix.com
ns21.constellix.com
ns31.constellix.com
ns41.constellix.net
ns51.constellix.net
ns61.constellix.net
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:160.72.22.128 ip4:160.72.22.129 ip4:160.72.22.130 ip4:160.72.22.131 ip4:12.228.6.215/32 include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com include:amazonses.com include:cust-spf.cashnet.com include:spf_.watermarkinsights.com include:a._spf.brightspace.com include:spf.happyfox.com include:_spf.e2ma.net include:_spflat.otis.edu ~all
📊 DNS lookups: 10/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; pct=25; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 25% of failing messages only
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
18 records- MS=389690EC1BB9A2535344680AD8E493514845CF4B
- apple-domain-verification=yoqybJleOLqQzjxn
- e2ma-verification=9qjgb
- SPFv=spf1 ip4:160.72.22.128 ip4:160.72.22.129 ip4:160.72.22.130 ip4:160.72.22.131 ip4:12.228.6.215/32 include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com include:amazonses.com include:cust-spf.cashnet.com include:spf_.watermarkinsights.com include:a._spf.brightspace.com include:spf.happyfox.com include:_spf.e2ma.net include:_spflat.otis.edu ~all
- google-site-verification=MAXnKD76qOfFIYcpKp6hqC4hEcglEAcGyrY1qfl045o
- sophos-domain-verification=f95522a7b9cfecc1cdb818e1e2d8013415af09e5f213e2ad0e3868ef622803d0
- adobe-idp-site-verification=79b18513-fec9-4e15-80f7-ce46cf4bc92f
- bxaLOhNbKdxHoG8u0UJgVUtatPELcpLvuppOl+a/1oUBiCAFZzp24lQ+i6SgBlmY7j9M6BoWKfbqlOHVBHPpZg==
- google-site-verification=PGIF6-PRtr0U4BCF83l4dspN7w7hPIHBpyROTds3sEE
- jCyd9nBZcjjSQ4vlwWeEbK0a53D92ynvz/IuMT9SQ3MQUn0dLCvjrcgc//QnGVQneeSMHUUmiuvwSQ8itpyIJg==
- google-site-verification=XWlWj485U9KHLrFIoRiBpLns8jHpAi1vGm5X7V4bQoQ
- autodesk-domain-verification=pfuH8GA8qRpWnn-D-3nM
- jamf-site-verification=NS6p0az0AixE0Qkh_W9r7w
- canva-site-verification=f6zCjvu57BSiWom_IzQNhw
- bw=WXoZ8e8V9jdYtrHLYyRvFO1r1rxRRFsXJuJ5AdMv2Zvn
- e2ma-verification=lawcb
- uber-domain-verification=67f02358-6d73-4703-bb22-7d8bcc419abb
- asv=be8b8303f37e3d3f783317857c60968c
Full email verification for otis.edu
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