121box.com

Valid Email Server
Domain Lookup › 121box.com

Domain Overview

DNS: ✓ 1d ago Checker: ✓ 1d ago
121box.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-05-19 21:23:18 UTC · ↺ Refresh

MX Hostnames

  • mx2.emailsrvr.com
  • mx1.emailsrvr.com

MX Priorities

  • mx2.emailsrvr.com: 20
  • mx1.emailsrvr.com: 10

A / AAAA Records

  • 50.28.104.37 ↩ ares.coastside.net

Mail Server IPs

  • 108.166.43.2 ↩ mx2.emailsrvr.com
  • 146.20.161.2 ↩ mx2.emailsrvr.com
  • 184.106.54.2 ↩ mx2.emailsrvr.com
  • 173.203.187.2 ↩ mx2.emailsrvr.com
  • 146.20.161.1 ↩ mx1.emailsrvr.com
  • 108.166.43.1 ↩ mx1.emailsrvr.com
  • 184.106.54.1 ↩ mx1.emailsrvr.com
  • 173.203.187.1 ↩ mx1.emailsrvr.com

SOA Record

Raw SOA ns5.coastside.net mike.121box.com 2017043001 10800 3600 604800 10800
Primary NS (mname)
ns5.coastside.net
Admin Email (rname)
mike@121box.com
Serial
2017043001
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
10800s

Nameservers (NS)

ns5.coastside.net
ns6.coastside.net

SPF Record

✓ Soft Fail (~all)
v=spf1 +a +mx include:emailsrvr.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate 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 +a +mx include:emailsrvr.com ~all
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