Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
opto-e.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 17:09:34 UTC · ↺ Refresh
MX Hostnames
- optoe-com01b.mail.protection.outlook.com
MX Priorities
- optoe-com01b.mail.protection.outlook.com: 0
A / AAAA Records
- 172.67.215.92 (no PTR)
- 104.21.78.28 (no PTR)
- 2606:4700:3037::6815:4e1c
- 2606:4700:3031::ac43:d75c
Mail Server IPs
- 52.101.103.2 ↩ mail-mi2p293cu00202.inbound.protection.outlook.com
- 52.101.103.1 ↩ mail-mi1p293cu00301.inbound.protection.outlook.com
- 52.101.103.19 ↩ mail-mi0p293cu00503.inbound.protection.outlook.com
- 52.101.103.0 ↩ mail-mi0p293cu00200.inbound.protection.outlook.com
- 2a01:111:f403:ca48::2 ↩ mail-mi2p293cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca48::3 ↩ mail-mi0p293cu00503.inbound.protection.outlook.com
- 2a01:111:f403:ca48:: ↩ mail-mi0p293cu00200.inbound.protection.outlook.com
- 2a01:111:f403:ca48::1 ↩ mail-mi1p293cu00301.inbound.protection.outlook.com
SOA Record
Raw SOA
jill.ns.cloudflare.com dns.cloudflare.com 2398578916 10000 2400 604800 1800
Primary NS (mname)
jill.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398578916
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
jill.ns.cloudflare.com
mario.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf.google.com include:musvc.com include:spf.protection.outlook.com include:one.zoho.eu include:eu.zcsend.net ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; pct=100; adkim=s; aspf=r
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
google._domainkey
selector1._domainkey
selector2._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
8 records- anthropic-domain-verification-jjg09d=3yKhvZ0vKLlo1vBKuPVe87c7J
- atlassian-domain-verification=eIr/ARYEoGU2J9T8JJgDHbSjPOMw7lLuZyuwKt00MrQhrixKyObIyaMBDg5QL0nS
- atlassian-sending-domain-verification=6a72da7d-b0dc-44a3-8417-ac57ce67813a
- SPFv=spf1 include:_spf.google.com include:musvc.com include:spf.protection.outlook.com include:one.zoho.eu include:eu.zcsend.net ~all
- zoho-verification=zb49553438.zmverify.zoho.eu
- MS=ms58940660
- MS=ms88600106
- ZOOM_verify_h_nAYtm2TsCJmUnOmHT5hw
Full email verification for opto-e.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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