Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
teachstone.org
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-04 02:04:26 UTC · ↺ Refresh
MX Hostnames
- aspmx.l.google.com
- aspmx5.googlemail.com
- aspmx2.googlemail.com
- aspmx3.googlemail.com
- aspmx4.googlemail.com
- alt1.aspmx.l.google.com
- alt2.aspmx.l.google.com
MX Priorities
- aspmx.l.google.com: 1
- aspmx2.googlemail.com: 10
- aspmx3.googlemail.com: 10
- aspmx4.googlemail.com: 10
- aspmx5.googlemail.com: 10
- alt1.aspmx.l.google.com: 5
- alt2.aspmx.l.google.com: 5
A / AAAA Records
- 16.15.183.107
- 16.15.199.10
- 16.15.199.202
- 16.15.253.163
- 16.15.223.103
- 54.231.136.13
- 52.217.75.11
- 52.217.201.141
Mail Server IPs
- 142.251.111.27 ↩ bk-in-f27.1e100.net
- 2607:f8b0:4004:c0b::1a ↩ bj-in-f26.1e100.net
- 108.177.123.26 ↩ lcscld-in-f26.1e100.net
- 2800:3f0:4003:c0f::1a (no PTR)
- 172.253.116.27 ↩ dj-in-f27.1e100.net
- 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
- 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
- 2a00:1450:4009:c0f::1a ↩ yulhrs-in-f26.1e100.net
- 173.194.76.27 ↩ ws-in-f27.1e100.net
- 2a00:1450:400c:c00::1b ↩ ws-in-f27.1e100.net
SOA Record
Raw SOA
ns-497.awsdns-62.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-497.awsdns-62.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-812.awsdns-37.net
ns-1125.awsdns-12.org
ns-1677.awsdns-17.co.uk
ns-497.awsdns-62.com
SPF Record
✓ Soft Fail (~all)
v=spf1 redirect=teachstone.org.hosted.spf-report.com
📊 DNS lookups: 1/10
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]; pct=10
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 10% of failing messages only
DKIM Selectors
✓ 2 found
google._domainkey
selector1._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
2 records- SPFv=spf1 redirect=teachstone.org.hosted.spf-report.com
- google-site-verification=99L53B5aoGIluyinRkS8vi9kC_M5gA1SDw3FMApEWkU
Full email verification for teachstone.org
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