downtowndetroit.org

Valid Email Server
Domain Lookup › downtowndetroit.org

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
downtowndetroit.org
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-22 09:06:52 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

  • downtowndetroit-org.mx2.arsmtp.com
  • downtowndetroit-org.mx1.arsmtp.com

MX Priorities

  • downtowndetroit-org.mx2.arsmtp.com: 20
  • downtowndetroit-org.mx1.arsmtp.com: 10

A / AAAA Records

  • 104.26.8.209 (no PTR)
  • 172.67.71.35 (no PTR)
  • 104.26.9.209 (no PTR)
  • 2606:4700:20::681a:9d1 (no PTR)
  • 2606:4700:20::ac43:4723 (no PTR)
  • 2606:4700:20::681a:8d1 (no PTR)

Mail Server IPs

  • 8.19.118.220 ↩ server2017.appriver.com
  • 8.31.233.243 ↩ server2016.appriver.com

SOA Record

Raw SOA cortney.ns.cloudflare.com dns.cloudflare.com 2399353728 10000 2400 604800 1800
Primary NS (mname)
cortney.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399353728
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

glen.ns.cloudflare.com
cortney.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:servers.mcsv.net include:_spf.psm.knowbe4.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict 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

✓ 3 found
dkim._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: dkim

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

4 records
  • ZOOM_verify_qVeDLcc3T7SGXZhHw5rr2g
  • google-site-verification=AdOtvw-C5eZ7oezGhoQx04PfM4AZBfHe0AB8mIc1e04
  • SPFv=spf1 include:spf.protection.outlook.com include:servers.mcsv.net include:_spf.psm.knowbe4.com -all
  • MS=C99DA8A8C5C49F3ACD2E6E4CC1AD61ECA99723F9
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 downtowndetroit.org

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

No credit card required
Get 1,000 Free Credits