Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
basd.k12.pa.us
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-19 15:37:39 UTC · ↺ Refresh
MX Hostnames
- alt2.aspmx.l.google.com
- alt1.aspmx.l.google.com
- aspmx.l.google.com
- alt3.aspmx.l.google.com
- alt4.aspmx.l.google.com
MX Priorities
- aspmx.l.google.com: 10
- alt4.aspmx.l.google.com: 100
- alt3.aspmx.l.google.com: 100
- alt2.aspmx.l.google.com: 50
- alt1.aspmx.l.google.com: 50
A / AAAA Records
- 174.129.25.170
Mail Server IPs
- 142.251.167.26 ↩ ww-in-f26.1e100.net
- 2607:f8b0:4004:c21::1b ↩ pe-in-f27.1e100.net
- 173.194.76.27 ↩ ws-in-f27.1e100.net
- 2a00:1450:400c:c00::1b ↩ ws-in-f27.1e100.net
- 192.178.223.27 ↩ yulhrs-in-f27.1e100.net
- 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
- 108.177.123.27 ↩ lcscld-in-f27.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
SOA Record
Raw SOA
ns.chesco.net postmaster.basd.k12.pa.us 182 10800 1080 1209600 900
Primary NS (mname)
ns.chesco.net
Admin Email (rname)
postmaster@basd.k12.pa.us
Serial
182
Refresh
10800s
Retry
1080s
Expire
1209600s
Minimum TTL
900s
Nameservers (NS)
ns1.chesco.net
ns2.chesco.net
ns.chesco.net
infoblox1.chesco.net
ns3.chesco.net
infoblox2.chesco.net
SPF Record
✓ Strict (-all)
v=spf1 ip4:206.127.137.130 ip4:206.127.137.137 ip4:206.127.137.230 ip4:206.127.137.231 include:_spf.google.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;pct=100;rua=mailto:[email protected],mailto:[email protected],mailto:[email protected];ruf=mailto:[email protected];ri=3600;fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 1 found
google._domainkey
✓ Public key: 392 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
2 records- jamf-site-verification=Mm0NAzGONtUDYDYrfA5Veg
- SPFv=spf1 ip4:206.127.137.130 ip4:206.127.137.137 ip4:206.127.137.230 ip4:206.127.137.231 include:_spf.google.com -all
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