arc.losrios.edu

Valid Email Server
Domain Lookup › arc.losrios.edu

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
arc.losrios.edu
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-17 19:55:37 UTC · ↺ Refresh

MX Hostnames

  • d124037a.ess.barracudanetworks.com
  • d124037b.ess.barracudanetworks.com

MX Priorities

  • d124037a.ess.barracudanetworks.com: 10
  • d124037b.ess.barracudanetworks.com: 20

A / AAAA Records

  • 216.176.183.101 ↩ 101.216-176-183-rdns.ingeniuxondemand.com

Mail Server IPs

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

SOA Record

Raw SOA iserver.arc.losrios.edu postmaster.iserver.arc.losrios.edu 2026022006 1800 900 604800 900
Primary NS (mname)
iserver.arc.losrios.edu
Admin Email (rname)
postmaster@iserver.arc.losrios.edu
Serial
2026022006
Refresh
1800s
Retry
900s
Expire
604800s
Minimum TTL
900s

Nameservers (NS)

smtp-cluster.losrios.edu
iserver.arc.losrios.edu

SPF Record

✓ Strict (-all)
v=spf1 a mx:arc.losrios.edu ip4:165.196.14.0/24 ip4:165.196.111.0/24 ip4:165.196.130.200 ip4:165.196.169.0/24 ip4:165.196.216.200 ip4:165.196.172.200 ip4:165.196.25.72 ip4:165.196.25.42 ip4:165.196.25.48 include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict 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 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

5 records
  • apple-domain-verification=2DAP4jzHE58vTtVJ
  • /XoJ+UR3MXYzKsgL5xBjwv6ziEk1EaZLq8YtenCTWxt4I146kS8EZ1igaK6rW801lBdqeOEIxuDFyD66glmF1w==
  • MS=51A73024B1B7AF864F8E75971CE12BEFE5FE540D
  • adobe-idp-site-verification=0760d75f-a5be-4c65-ba20-5c7f24a7b8d5
  • SPFv=spf1 a mx:arc.losrios.edu ip4:165.196.14.0/24 ip4:165.196.111.0/24 ip4:165.196.130.200 ip4:165.196.169.0/24 ip4:165.196.216.200 ip4:165.196.172.200 ip4:165.196.25.72 ip4:165.196.25.42 ip4:165.196.25.48 include:spf.protection.outlook.com -all
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