Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rubensteinlaw.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 01:37:40 UTC · ↺ Refresh
MX Hostnames
- rubensteinlaw-com.mail.protection.outlook.com
MX Priorities
- rubensteinlaw-com.mail.protection.outlook.com: 0
A / AAAA Records
- 160.153.0.45 ↩ 45.0.153.160.host.secureserver.net
Mail Server IPs
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
- 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 2a01:111:f403:c902::1 ↩ mail-sj2pr05cu00401.inbound.protection.outlook.com
- 2a01:111:f403:c927:: ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com
SOA Record
Raw SOA
ns77.domaincontrol.com dns.jomax.net 2026030301 28800 7200 604800 600
Primary NS (mname)
ns77.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026030301
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns77.domaincontrol.com
ns78.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:54.87.99.65 include:spf.protection.outlook.com include:_spf.salesforce.com include:amazonses.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=20
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
⚠ Policy applies to 20% of failing messages only
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
8 records- facebook-domain-verification=79b08bhqv1ku5z746mbcinsrn8ey6o
- SPFv=spf1 ip4:54.87.99.65 include:spf.protection.outlook.com include:_spf.salesforce.com include:amazonses.com -all
- ZOOM_verify_O31z7RvaJDk2wdoorghE7z
- duo_sso_verification=coZyfolSpmBKD1DWZyNfWH0PsVeaEbXuJQfr8TAlxtOn3m1DJ74j9w5UtrUzaM5P
- google-site-verification=fPSnbQSVMTH8Qo8V5n0fu6HvdEy7yx_8BSTRooUEJOU
- MS=ms25356814
- google-site-verification=qqcMEDx3wCzDdeHeXifMN8aqNpdnU3gAWzHSl2uEaog
- 0ed1fe018a40c57f047a004384ba4837b439296e3b
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 rubensteinlaw.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
Get 1,000 Free Credits