careersourcetampabay.com

Valid Email Server
Domain Lookup › careersourcetampabay.com

Domain Overview

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

Checked via [email protected] · 2026-03-22 08:31:30 UTC · ↺ Refresh

Add email validation to your forms — free

Add our free script to block 10,000+ disposable domains + perform other checks. No signup, unlimited checks.

MX validation Disposable detection Role accounts
Add to your signup form
<script src="https://check.verifyswift.com/"></script>
One line · No registration · See full docs & demo → · Customize →

MX Hostnames

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

MX Priorities

  • usb-smtp-inbound-2.mimecast.com: 10
  • usb-smtp-inbound-1.mimecast.com: 10

A / AAAA Records

  • 141.193.213.21 (no PTR)
  • 141.193.213.20 (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 memphis.ns.cloudflare.com dns.cloudflare.com 2398813469 10000 2400 604800 1800
Primary NS (mname)
memphis.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398813469
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

zoe.ns.cloudflare.com
memphis.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 mx ip4:‎3.98.254.73 ip4:15.222.145.39 ip4:97.76.201.144/28 include:relay.mailchannels.net include:usb._netblocks.mimecast.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate 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 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

4 records
  • 61lQP8euqs5p/p8O7CmiFPM6O5INkdRbitXSvpJRozdvRyN/MwVJT659czknVtvhqHHPk+ItpnYxVmbg50jtkA==
  • tmes=0fbe657799390ecdae19838a05b48e91
  • SPFv=spf1 mx ip4:‎3.98.254.73 ip4:15.222.145.39 ip4:97.76.201.144/28 include:relay.mailchannels.net include:usb._netblocks.mimecast.com ~all
  • 0ed1fe018a6974c55e179546d1beae437fb575e9cc
Free · No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.

<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site · Customize →
See demo & docs
Deep verification
Full email verification for careersourcetampabay.com

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits