Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
arcgroup.io
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 09:54:40 UTC · ↺ Refresh
MX Hostnames
- d228112.b.ess.uk.barracudanetworks.com
- d228112.a.ess.uk.barracudanetworks.com
MX Priorities
- d228112.b.ess.uk.barracudanetworks.com: 1
- d228112.a.ess.uk.barracudanetworks.com: 0
A / AAAA Records
- 141.193.213.10 (no PTR)
- 141.193.213.11 (no PTR)
Mail Server IPs
- 18.133.136.186 ↩ mail.ess.uk.barracuda.com
- 18.133.136.188 ↩ mail.ess.uk.barracuda.com
- 18.133.136.187 ↩ mail.ess.uk.barracuda.com
SOA Record
Raw SOA
dns1.registrar-servers.com hostmaster.registrar-servers.com 1748948273 43200 3600 604800 3601
Primary NS (mname)
dns1.registrar-servers.com
Admin Email (rname)
hostmaster@registrar-servers.com
Serial
1748948273
Refresh
43200s
Retry
3600s
Expire
604800s
Minimum TTL
3601s
Nameservers (NS)
dns2.registrar-servers.com
dns1.registrar-servers.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:52.18.156.134 ip4:34.248.8.165 include:spf.ess.uk.barracudanetworks.com include:spf.protection.outlook.com include:26669701.spf07.hubspotemail.net -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
3 records- SPFv=spf1 ip4:52.18.156.134 ip4:34.248.8.165 include:spf.ess.uk.barracudanetworks.com include:spf.protection.outlook.com include:26669701.spf07.hubspotemail.net -all
- MS=ms30691383
- google-site-verification=vv-D8UhNcdik1XW_f-KKvoQAvOqTFB8GkL_ddr-l9jM
Full email verification for arcgroup.io
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