Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
starchapter.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 22:00:40 UTC · ↺ Refresh
MX Hostnames
- starchapter-com.mail.protection.outlook.com
MX Priorities
- starchapter-com.mail.protection.outlook.com: 0
A / AAAA Records
- 104.16.253.80 (no PTR)
- 104.16.252.80 (no PTR)
- 104.16.250.80
- 104.16.249.80
- 104.16.251.80
- 2606:4700::6810:fc50
- 2606:4700::6810:fd50
- 2606:4700::6810:fa50
- 2606:4700::6810:fb50
- 2606:4700::6810:f950
Mail Server IPs
- 52.101.8.42 ↩ mail-dm6pr03cu00402.inbound.protection.outlook.com
- 52.101.41.26 ↩ mail-sj0pr03cu01702.inbound.protection.outlook.com
- 52.101.41.24 ↩ mail-sj0pr03cu01600.inbound.protection.outlook.com
- 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
- 2a01:111:f403:c931::1 ↩ mail-sa9pr03cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c92c::3 ↩ mail-dm5pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:f90f:: ↩ mail-sa9pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.starchapter.com dns.cloudflare.com 2399517335 10000 2400 604800 1800
Primary NS (mname)
ns1.starchapter.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399517335
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ns1.starchapter.com
ns2.starchapter.com
SPF Record
✓ Soft Fail (~all)
v=spf1 a:starchapter.com mx ip4:35.168.119.252 ip4:3.234.202.216 ip4:18.214.131.89 ip4:3.209.174.200 ip4:166.78.71.148 ip4:159.135.230.118 ip4:159.135.230.224/29 ip4:159.135.230.23 include:spf.protection.outlook.com include:pf03.hubspotemail.net include:mailgun.org ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none; aspf=s; fo=1:s;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Strict
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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
5 records- MS=ms96534481
- ZOOM_verify_GY5UptljSe1FLOvkJiXIG6
- atlassian-domain-verification=nCS5ci7mSRXQGohT4Fz2L2qF7QAFXDC9gyBL4b5MZdhQtnbMHjLy9x4mKZeWBuex
- SPFv=spf1 a:starchapter.com mx ip4:35.168.119.252 ip4:3.234.202.216 ip4:18.214.131.89 ip4:3.209.174.200 ip4:166.78.71.148 ip4:159.135.230.118 ip4:159.135.230.224/29 ip4:159.135.230.23 include:spf.protection.outlook.com include:pf03.hubspotemail.net include:mailgun.org ~all
- MS=ms92416341
Full email verification for starchapter.com
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