Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
luccaofs.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 16:08:32 UTC · ↺ Refresh
MX Hostnames
- luccaofs-com.mail.protection.outlook.com
MX Priorities
- luccaofs-com.mail.protection.outlook.com: 10
A / AAAA Records
- 50.28.32.45 ↩ server.dfserver12.com
Mail Server IPs
- 52.101.9.5 ↩ mail-mn2pr04cu00205.inbound.protection.outlook.com
- 52.101.11.7 ↩ mail-sa9pr04cu00107.inbound.protection.outlook.com
- 52.101.41.0 ↩ mail-byapr05cu00400.inbound.protection.outlook.com
- 52.101.9.2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c901::1 ↩ mail-bl2pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:f903:: (no PTR)
- 2a01:111:f403:c931:: ↩ mail-sn1pr02cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.dfserver4.com devnull.sourcedns.com 2026032203 3600 7200 1209600 86400
Primary NS (mname)
ns1.dfserver4.com
Admin Email (rname)
devnull@sourcedns.com
Serial
2026032203
Refresh
3600s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns2.dfserver4.com
ns1.dfserver4.com
SPF Record
✓ Soft Fail (~all)
v=spf1 +include:spf.protection.outlook.com +a +mx +ip4:50.28.53.169 +ip4:50.28.32.45 ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- facebook-domain-verification=i9r7jzv6rzl0h3nzobanarwd63iion
- MS=ms58191591
- SPFv=spf1 +include:spf.protection.outlook.com +a +mx +ip4:50.28.53.169 +ip4:50.28.32.45 ~all
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for luccaofs.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits