Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
greenwich.k12.ct.us
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 19:47:28 UTC · ↺ Refresh
MX Hostnames
- alt2.aspmx.l.google.com
- alt4.aspmx.l.google.com
- alt1.aspmx.l.google.com
- alt3.aspmx.l.google.com
- aspmx.l.google.com
MX Priorities
- alt3.aspmx.l.google.com: 10
- alt2.aspmx.l.google.com: 5
- alt1.aspmx.l.google.com: 5
- aspmx.l.google.com: 1
- alt4.aspmx.l.google.com: 10
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
- 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
- 172.253.116.26 ↩ dj-in-f26.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
- 2800:3f0:4003:c0f::1b (no PTR)
- 192.178.155.26 ↩ yuiadrs-in-f26.1e100.net
- 2607:f8b0:4004:c21::1a ↩ pe-in-f26.1e100.net
- 173.194.76.26 ↩ ws-in-f26.1e100.net
- 2a00:1450:400c:c00::1b ↩ ws-in-x1b.1e100.net
SOA Record
Raw SOA
ns1.cen.ct.gov cen.po.state.ct.us 2016051369 3600 1800 2419200 900
Primary NS (mname)
ns1.cen.ct.gov
Admin Email (rname)
cen@po.state.ct.us
Serial
2016051369
Refresh
3600s
Retry
1800s
Expire
2419200s
Minimum TTL
900s
Nameservers (NS)
ns1.cen.ct.gov
ns2.cen.ct.gov
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:64.19.202.183 ip4:52.226.152.64/28 ip4:20.62.181.248/29 include:_spf.google.com include:_spf.parentlink.net include:spf.blackboardconnect.com include:mailgun.org ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;rua=mailto:[email protected];adkim=s;aspf=r;pct=100
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
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
5 records- adobe-idp-site-verification=52df9df8721851c9a1170a4c9061d14962ffc5bfb24d2e0482e28bee2ca4f4be
- ppe-a36f44768a42531329f4
- teamviewer-sso-verification=c0b42b5be41548b3a9be3811105f916b
- ms=ms50227553
- SPFv=spf1 ip4:64.19.202.183 ip4:52.226.152.64/28 ip4:20.62.181.248/29 include:_spf.google.com include:_spf.parentlink.net include:spf.blackboardconnect.com include:mailgun.org ~all
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