simtexas.com

Valid Email Server
Domain Lookup › simtexas.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
simtexas.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-26 02:35:42 UTC · ↺ Refresh

MX Hostnames

  • usb-smtp-inbound-2.mimecast.com
  • usb-smtp-inbound-1.mimecast.com

MX Priorities

  • usb-smtp-inbound-2.mimecast.com: 60
  • usb-smtp-inbound-1.mimecast.com: 50

A / AAAA Records

  • 104.21.66.8 (no PTR)
  • 172.67.154.120 (no PTR)
  • 2606:4700:3030::ac43:9a78 (no PTR)
  • 2606:4700:3033::6815:4208 (no PTR)

Mail Server IPs

  • 170.10.152.242 ↩ usb-smtp-delivery-2.mimecast.com
  • 170.10.150.242 ↩ usb-smtp-delivery-2.mimecast.com

SOA Record

Raw SOA eva.ns.cloudflare.com dns.cloudflare.com 2395394164 10000 2400 604800 1800
Primary NS (mname)
eva.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2395394164
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

vin.ns.cloudflare.com
eva.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:us._netblocks.mimecast.com include:usb._netblocks.mimecast.com ip4:76.198.145.188 ip4:98.156.17.182 ip4:8.53.11.23 ip4:4.8.115.248 include:amazonses.com include:spf.constantcontact.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1;p=quarantine;pct=100;rua=mailto:[email protected],mailto:[email protected];ri=86400;fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],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

9 records
  • _r1enrcaut1h6bcgrr8pxhgfy4fpdr9o
  • fz86xvr40qy75s5dq3v454jys9sr25mf
  • google-gws-recovery-domain-verification=38134784
  • google-site-verification=HkrABom3-lpH_n3Lu1V363hJN-OOVCeh-OwimS8t17M
  • SPFv=spf1 include:us._netblocks.mimecast.com include:usb._netblocks.mimecast.com ip4:76.198.145.188 ip4:98.156.17.182 ip4:8.53.11.23 ip4:4.8.115.248 include:amazonses.com include:spf.constantcontact.com include:spf.protection.outlook.com ~all
  • wbxyr2qy5n0m1rqlh5nbpkbym024274k
  • 0kMjeU6BvrGlUB68I/bSlVHZlMUe6yro+a+zQpHlZzFqGDCqAyWlikwg6E+Qsu+yDxVzxHEYqWSrW1dMW1B2zQ==
  • MS=82DD5BD1DB3D3DF38361A9D01A29757CBA6D900B
  • ZA=RqSIDCHSGKV/+AGSdqcPAg==
Full email verification for simtexas.com

Run SMTP check, SPF/DKIM/DMARC and catch-all detection.

SPF / DKIM / DMARC Get 1,000 Free Credits