Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
merlincontracting.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 21:41:57 UTC · ↺ Refresh
MX Hostnames
- mx-02-us-east-2.prod.hydra.sophos.com
- mx-01-us-east-2.prod.hydra.sophos.com
MX Priorities
- mx-01-us-east-2.prod.hydra.sophos.com: 10
- mx-02-us-east-2.prod.hydra.sophos.com: 20
A / AAAA Records
- 173.201.190.82 ↩ ip-173-201-190-82.ip.secureserver.net
Mail Server IPs
- 3.135.48.136 ↩ ec2-3-135-48-136.us-east-2.compute.amazonaws.com
- 18.189.107.171 ↩ ec2-18-189-107-171.us-east-2.compute.amazonaws.com
- 18.218.105.173 ↩ ec2-18-218-105-173.us-east-2.compute.amazonaws.com
SOA Record
Raw SOA
ns01.domaincontrol.com dns.jomax.net 2024071803 28800 7200 604800 600
Primary NS (mname)
ns01.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2024071803
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns01.domaincontrol.com
ns02.domaincontrol.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:_spf_useast2.prod.hydra.sophos.com ip4:184.177.48.243 include:servers.mcsv.net ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
k1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: k1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- MS=ms16150477
- sophos-domain-verification=a0d107c1daae8839eadd7dd4df69345f0bcc62a9
- SPFv=spf1 include:_spf_useast2.prod.hydra.sophos.com ip4:184.177.48.243 include:servers.mcsv.net ~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 merlincontracting.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits