Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
herculesindustries.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 09:18:15 UTC · ↺ Refresh
MX Hostnames
- d325873b.ess.barracudanetworks.com
- d325873a.ess.barracudanetworks.com
MX Priorities
- d325873b.ess.barracudanetworks.com: 99
- d325873a.ess.barracudanetworks.com: 98
A / AAAA Records
- 34.8.110.194 ↩ 194.110.8.34.bc.googleusercontent.com
Mail Server IPs
- 209.222.82.252 ↩ mail.ess.barracuda.com
- 209.222.82.253 ↩ mail.ess.barracuda.com
- 209.222.82.255 ↩ mail.ess.barracuda.com
SOA Record
Raw SOA
ns1.dnsbycomodo.net admin.dns.com 2025032701 10800 864000 7200 7200
Primary NS (mname)
ns1.dnsbycomodo.net
Admin Email (rname)
admin@dns.com
Serial
2025032701
Refresh
10800s
Retry
864000s
Expire
7200s
Minimum TTL
7200s
Nameservers (NS)
ns1.dnsbycomodo.net
ns2.dnsbycomodo.net
SPF Record
✓ Strict (-all)
v=spf1 a mx a:herculesindustries.com a:host.herculesindustries.com include:spf.protection.outlook.com include:spf.mandrillapp.com ip4:216.218.184.100 -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
default._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
6 records- BZ8JaMGjDNok4uau8coyWyrGMN9UHTyKoKM2lqmHq1Ef1APTEDWVHihdmstQSlYrkFk5N3IGe92hREa79lagjA==
- MS=ms95399937
- _globalsign-domain-verification=T316RwJDRarwwhs3fil7GJolwIOjQt-8egZ7rQIhCP
- google-site-verification=GxxvRvtl0Mdxb5ZzbeXZkpapwxUNHAwZxVAQHXLTzRM
- google-site-verification=RKB5jx0GziWVogii4nUN8sWGU40t9GWu49YxXUIrJwY
- SPFv=spf1 a mx a:herculesindustries.com a:host.herculesindustries.com include:spf.protection.outlook.com include:spf.mandrillapp.com ip4:216.218.184.100 -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 herculesindustries.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits