Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
greyrock.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 00:50:57 UTC · ↺ Refresh
MX Hostnames
- d166891b.ess.barracudanetworks.com
- d166891a.ess.barracudanetworks.com
MX Priorities
- d166891b.ess.barracudanetworks.com: 20
- d166891a.ess.barracudanetworks.com: 10
A / AAAA Records
- 74.208.236.16 ↩ 74-208-236-16.elastic-ssl.ui-r.com
- 2607:f1c0:100f:f000::233 ↩ 2607-f1c0-100f-f000-0000-0000-0000-0233.elastic-ssl.ui-r.com
Mail Server IPs
- 209.222.82.255 ↩ mail.ess.barracuda.com
- 209.222.82.252 ↩ mail.ess.barracuda.com
- 209.222.82.253 ↩ mail.ess.barracuda.com
SOA Record
Raw SOA
ns1047.ui-dns.biz hostmaster.1and1.com 2017040834 28800 7200 604800 300
Primary NS (mname)
ns1047.ui-dns.biz
Admin Email (rname)
hostmaster@1and1.com
Serial
2017040834
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns1055.ui-dns.de
ns1098.ui-dns.com
ns1047.ui-dns.biz
ns1035.ui-dns.org
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✗ None detectedNo 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
4 records- SPFv=spf1 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com ~all
- dropbox-domain-verification=ss0y7urffjwb
- MS=ms18972817
- slack-domain-verification=qqi6M4o6qwaaYztD5G92BYsEcTCD0mNg5mArIfMe
Full email verification for greyrock.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits