Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
a-optima.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 00:07:36 UTC · ↺ Refresh
MX Hostnames
- aoptima-com0c.mail.protection.outlook.com
MX Priorities
- aoptima-com0c.mail.protection.outlook.com: 0
A / AAAA Records
- 74.120.222.154 ↩ box3.domaineinternet.ca
Mail Server IPs
- 52.101.190.2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
- 52.101.190.3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
- 52.101.190.0 ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
- 52.101.192.0 ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
- 2a01:111:f403:c942::3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c942::1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com
- 2a01:111:f403:c944:: ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
- 2a01:111:f403:c942::2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
SOA Record
Raw SOA
ns09.domaincontrol.com dns.jomax.net 2026032401 28800 7200 604800 3600
Primary NS (mname)
ns09.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026032401
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns09.domaincontrol.com
ns10.domaincontrol.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:sender.zohobooks.com -all include:zcsend.net -all include:transmail.net
📊 DNS lookups: 4/10
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
4 records- MS=ms40008579
- SPFv=spf1 include:spf.protection.outlook.com include:sender.zohobooks.com -all include:zcsend.net -all include:transmail.net
- druide-validation-domaine=552397f87e9040fde98e4a511dc97bdc
- zoho-verification=zb68960473.zmverify.zoho.com
Full email verification for a-optima.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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