Live data โ DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: โก live
Checker: โก live
derivesystems.com
Yes
โ Yes
Outlook
No
No
โ Yes
No
No
Checked via [email protected]
ยท 2026-05-21 09:14:15 UTC ยท โบ Refresh
MX Hostnames
- derivesystems-com.mail.protection.outlook.com
MX Priorities
No priority data.
A / AAAA Records
- 216.69.168.252
Mail Server IPs
No IPs resolved.
SOA Record
No SOA record found.
Nameservers (NS)
tim.ns.cloudflare.com
gracie.ns.cloudflare.com
SPF Record
โ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf.odoo.com include:spf.myconnectwise.net ip4:149.72.147.186 ip4:167.89.101.239 ip4:168.245.40.44 ip4:142.0.180.120 -all
๐ DNS lookups: 3/10
โ Hard fail (-all) โ strict enforcement
DMARC Record
โ p=none
v=DMARC1; p=none
โ p=none โ monitoring only, no enforcement
๐ SPF alignment: Relaxed
ยท DKIM alignment: Relaxed
โ No aggregate reports (rua= not set)
DKIM Selectors
โ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
โ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
13 records- google-site-verification=jVBfprenK8kUqyiSNb8vOkdNXarH_LY17OHdXJnP_FI
- google-site-verification=mmWX4doeUmzyFeo4qSrTGOqFdiodFtDVhQ-IzjjcxGc
- google-site-verification=z-PNyc8j8-M14XxRZMrfMYcaaVxGGSFtSTf9yir3Yic
- klaviyo-site-verification=WkqJC2
- me84tjh5n0s20s6n2mg5tiia1r
- ncp2h6w3kwbj8l32k9j6l16s9w9s27n5
- SPFv=spf1 include:spf.protection.outlook.com include:_spf.odoo.com include:spf.myconnectwise.net ip4:149.72.147.186 ip4:167.89.101.239 ip4:168.245.40.44 ip4:142.0.180.120 -all
- v=verifydomain MS=7257975
- b750va5bmasen9fpdomlq568sn
- deriveweb-derivesystemscom-proxy-prod.azurewebsites.net
- google-site-verification=GL_GU_DsFZczBhBEDs_6-09Oi5HLtvFEHMlfXWeA-is
- google-site-verification=JQtM3NSdRfXiNEVfITQ1RQ-qTvykEhrkDHfXtHp6H2Y
- google-site-verification=gxqufKhmcL40Y81_P-9F9q21N-iqELRDHwY5LdKR4bw
Free ยท No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts โ unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code ยท Works on any site
See demo & docs
Deep verification
Full email verification for derivesystems.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits