Domain Overview
DNS: ✓ 1d ago
Checker: ✓ 1d ago
backbox.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-07-01 09:42:12 UTC · ↺ Refresh
MX Hostnames
- backbox-com.mail.protection.outlook.com
MX Priorities
- backbox-com.mail.protection.outlook.com: 0
A / AAAA Records
- 34.74.253.0 ↩ 0.253.74.34.bc.googleusercontent.com
Mail Server IPs
- 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
- 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca09::f ↩ mail-am7pr05cu00307.inbound.protection.outlook.com
- 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca04::5 ↩ mail-db3pr0202cu00205.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-1238.awsdns-26.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1238.awsdns-26.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1238.awsdns-26.org
ns-1588.awsdns-06.co.uk
ns-74.awsdns-09.com
ns-831.awsdns-39.net
SPF Record
✓ Strict (-all)
v=spf1 a:dispatch-us.ppe-hosted.com include:spf.protection.outlook.com include:2455580.spf04.hubspotemail.net include:_spf.salesforce.com include:spf.mandrillapp.com include:bf04x.hubspotemail.net -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
14 records- 1password-site-verification=YREH2VIP6REVFI5A2VUI4GCENA
- 6pv68hje80r7al3o23cn8089bq
- _x09no9w0zh7s0hdz4rs1npsxy39064j
- anthropic-domain-verification-e6ysga=EWNzy8PFuZOhUjrljxVAtxYFn
- apple-domain-verification=nyiu18WXHnwRSNOX
- asv=cd3207bd90feb55923e7fd9f169f0e35
- figma-domain-verification=c40b102d4befd4cd8afedacc167b534c31f6fbebfc63679914e3902821585dac-1750100277
- google-gws-recovery-domain-verification=52515342
- google-site-verification=1FSwn5OIbQSwn1OLgMYVPjzzeJCijH8bNbIjMu1EMAs
- google-site-verification=C8JlzhmwuajSDENyf7U3-QF-HS1SZfYaCuV84LwEukY
- google-site-verification=xEkP1dJL7xIonJxAb3FtxuxwC7_NrKzNXbKXTFCeM4k
- ppe-ba8ba0e2f6538770c46f1455d5e95c6aa9fa811b
- slack-domain-verification=Cgr8pGHm3mKh5bqaDxNc86Ob9QsUoNUSE3HUxfie
- SPFv=spf1 a:dispatch-us.ppe-hosted.com include:spf.protection.outlook.com include:2455580.spf04.hubspotemail.net include:_spf.salesforce.com include:spf.mandrillapp.com include:bf04x.hubspotemail.net -all
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