Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
double-envelope.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 15:19:01 UTC · ↺ Refresh
MX Hostnames
- doubleenvelope-com01e.mail.protection.outlook.com
MX Priorities
- doubleenvelope-com01e.mail.protection.outlook.com: 10
A / AAAA Records
- 66.19.155.90 (no PTR)
Mail Server IPs
- 52.101.11.13 ↩ mail-sn1pr0501cu00205.inbound.protection.outlook.com
- 52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
- 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
- 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c803:: ↩ mail-bn1pr21cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f902:: ↩ mail-bl2pr04cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns97.worldnic.com namehost.worldnic.com 125042911 10800 3600 604800 3600
Primary NS (mname)
ns97.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125042911
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns98.worldnic.com
ns97.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
6 records- bq32otdlghd73lkr9d8fupojiv
- MS=ms72194827
- SPFv=spf1 include:spf.protection.outlook.com -all
- extensis-domain-verification=03790743-8f4a-47dd-be5d-4e63e5466784
- ljjem55unajoskphs9oo7eacf
- 66l47s46o7m1am7lh7juk5qh61
Full email verification for double-envelope.com
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