si2.com

Valid Email Server
Domain Lookup › si2.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
si2.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-29 01:52:39 UTC · ↺ Refresh

MX Hostnames

  • si2.com.1.arsmtp.com
  • si2.com.2.arsmtp.com

MX Priorities

  • si2.com.1.arsmtp.com: 10
  • si2.com.2.arsmtp.com: 20

A / AAAA Records

  • 74.208.236.1 ↩ 74-208-236-1.elastic-ssl.ui-r.com

Mail Server IPs

  • 8.31.233.239 ↩ server2008.appriver.com
  • 8.19.118.215 ↩ server2009.appriver.com

SOA Record

Raw SOA ns-125.awsdns-15.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-125.awsdns-15.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-1330.awsdns-38.org
ns-1872.awsdns-42.co.uk
ns-970.awsdns-57.net
ns-125.awsdns-15.com

SPF Record

✓ Strict (-all)
v=spf1 a:authsmtp.com ip4:209.246.137.14 ip4:209.246.152.34 include:authsmtp.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=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
  • SPFv=spf1 a:authsmtp.com ip4:209.246.137.14 ip4:209.246.152.34 include:authsmtp.com -all
  • 8oWzkvPp
  • BFCR68YD3HKVMFT95ERN4JA37TFAEPDM
  • MS=CA0D28F3137324C974C159987374CCE47BB26FD1
  • MS=ms18831562
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