Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
jcq.com.do
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-30 00:23:00 UTC · ↺ Refresh
MX Hostnames
- jcq-com-do.mail.protection.outlook.com
MX Priorities
- jcq-com-do.mail.protection.outlook.com: 0
A / AAAA Records
- 167.114.171.242 ↩ ip242.ip-167-114-171.net
- 2607:5300:203:c85f:: (no PTR)
Mail Server IPs
- 52.101.11.15 ↩ mail-sa9pr02cu00207.inbound.protection.outlook.com
- 52.101.9.5 ↩ mail-mn2pr04cu00205.inbound.protection.outlook.com
- 52.101.9.26 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f902::2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 2a01:111:f403:f908::2 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
- 2a01:111:f403:f905::4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.dnsrubycom.com equiposoporte.rubycom.com 2025121000 3600 1800 1209600 86400
Primary NS (mname)
ns1.dnsrubycom.com
Admin Email (rname)
equiposoporte@rubycom.com
Serial
2025121000
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns1.dnsrubycom.com
ns2.dnsrubycom.com
ns3.dnsrubycom.com
ns4.dnsrubycom.com
SPF Record
✓ Strict (-all)
v=spf1 +a +mx +ip4:148.113.198.95 +ip4:167.114.171.242 +ip4:144.217.11.216 +ip4:149.56.28.90 +ip4:54.39.28.125 +include:spf.protection.outlook.com +include:emailsrvr.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; aspf=s; adkim=s;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
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
7 records- _fno64o09fq7b5vq2h4e6p0yhos16g6g
- rn9fsfdm52k4rjlzl3hd09358qhr8crc
- _34d24oyasci2acola9t3tv175bqyx57
- hqtt6vlbcn5s23qpwv5cvvx2twhxfccs
- MS=ms48377292
- SPFv=spf1 +a +mx +ip4:148.113.198.95 +ip4:167.114.171.242 +ip4:144.217.11.216 +ip4:149.56.28.90 +ip4:54.39.28.125 +include:spf.protection.outlook.com +include:emailsrvr.com -all
- mzg4dkcrd3l9624nzqjcrn382dx5scgt
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 jcq.com.do
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits