u.cts.vresp.com

Valid Email Server
Domain Lookup › u.cts.vresp.com
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
u.cts.vresp.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-20 19:03:52 UTC · ↺ Refresh

MX Hostnames

  • a.mx.u.cts.vresp.com

MX Priorities

  • a.mx.u.cts.vresp.com: 0

A / AAAA Records

  • 74.116.89.184 ↩ 74.116.89.184.ip.verticalresponse.com

Mail Server IPs

  • 74.116.89.184 ↩ 74.116.89.184.ip.verticalresponse.com

SOA Record

No SOA record found.

Nameservers (NS)

No nameservers found.

SPF Record

✓ Strict (-all)
v=spf1 ip4:74.116.88.0/22 ip4:216.55.172.0/24 mx include:verticalresponse.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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

1 record
  • SPFv=spf1 ip4:74.116.88.0/22 ip4:216.55.172.0/24 mx include:verticalresponse.com -all
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