malcotools.com

Valid Email Server
Domain Lookup › malcotools.com

Domain Overview

DNS: ✓ 1d ago Checker: ✓ 1d ago
malcotools.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-07-18 04:24:06 UTC · ↺ Refresh

Add email validation to your forms — free

Add our free script to block 10,000+ disposable domains + perform other checks. No signup, unlimited checks.

MX validation Disposable detection Role accounts
Add to your signup form
<script src="https://check.verifyswift.com/"></script>
One line · No registration · See full docs & demo → · Customize →

MX Hostnames

  • d321215a.ess.barracudanetworks.com
  • d321215b.ess.barracudanetworks.com

MX Priorities

  • d321215b.ess.barracudanetworks.com: 20
  • d321215a.ess.barracudanetworks.com: 10

A / AAAA Records

  • 104.26.6.67 (no PTR)
  • 172.67.74.19 (no PTR)
  • 104.26.7.67 (no PTR)
  • 2606:4700:20::681a:643 (no PTR)
  • 2606:4700:20::ac43:4a13 (no PTR)
  • 2606:4700:20::681a:743 (no PTR)

Mail Server IPs

  • 209.222.82.253 ↩ mail.ess.barracuda.com
  • 209.222.82.255 ↩ mail.ess.barracuda.com
  • 209.222.82.252 ↩ mail.ess.barracuda.com

SOA Record

Raw SOA aitana.ns.cloudflare.com dns.cloudflare.com 2408837604 10000 2400 604800 1800
Primary NS (mname)
aitana.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2408837604
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

aitana.ns.cloudflare.com
newt.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:40.139.34.160/28 ip4:208.75.120.0/22 ip4:205.207.104.0/22 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com include:rp.oracleemaildelivery.com include:_spf.psm.knowbe4.com include:spf.mandrillapp.com include:sendgrid.net include:_spf.ultipro.com -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected],mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected],mailto:[email protected]

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

8 records
  • zp7uKyUwPn1MKiojAuBmFmPUi/x7hqCj0c5X9D9HCi1PeM/IzoqUvwmnNZfsE63NlJ8KBcwYf0M7yq/28Lh1JQ==
  • /kgitdt8IhZVJdF3Y5kudXMDm0/E97uCiIKT5856Jj3ffjMyl6j16hx7jw3jHhUkE27Ar0bSeLlUxo/gx2Qofw==
  • MS=ms84027928
  • cisco-ci-domain-verification=49885123f423dbc7d302afdb908fb07ee53276f2976ba17fbf593c6a86b304ae
  • duo_sso_verification=h9gqoU7CNs2bkq0k1jru738RfWTF3UyANhY6fP2Xq07IdHUhFRXSh2s5LHnIo3Ya
  • ikin3ndt4ces9amfnsreh5mnsb
  • pu0321c1vdod1c0moq9hk08njd
  • SPFv=spf1 ip4:40.139.34.160/28 ip4:208.75.120.0/22 ip4:205.207.104.0/22 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com include:rp.oracleemaildelivery.com include:_spf.psm.knowbe4.com include:spf.mandrillapp.com include:sendgrid.net include:_spf.ultipro.com -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 · Customize →
See demo & docs
Deep verification
Full email verification for malcotools.com

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits