Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tucsonsentinel.com
Disposable
✓ Yes
Unknown
⚠ Yes
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-06-04 04:32:05 UTC · ↺ Refresh
MX Hostnames
- mx2.emailsrvr.com
- mx1.emailsrvr.com
MX Priorities
- mx2.emailsrvr.com: 20
- mx1.emailsrvr.com: 10
A / AAAA Records
- 172.66.43.83 (no PTR)
- 172.66.40.173 (no PTR)
- 2606:4700:3108::ac42:28ad (no PTR)
- 2606:4700:3108::ac42:2b53 (no PTR)
Mail Server IPs
- 184.106.54.2 ↩ mx2.emailsrvr.com
- 146.20.161.2 ↩ mx2.emailsrvr.com
- 108.166.43.2 ↩ mx2.emailsrvr.com
- 173.203.187.2 ↩ mx2.emailsrvr.com
- 173.203.187.1 ↩ mx1.emailsrvr.com
SOA Record
Raw SOA
duke.ns.cloudflare.com dns.cloudflare.com 2405069239 10000 2400 604800 1800
Primary NS (mname)
duke.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2405069239
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
duke.ns.cloudflare.com
lola.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:143.198.53.28 ip4:161.47.34.7 include:emailsrvr.com include:_spf.google.com include:google.com ip4:129.121.134.233 ip4:67.212.192.36 ip4:173.203.187.108 ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;pct=100;rua=mailto:[email protected],mailto:[email protected],mailto:[email protected];sp=none;aspf=r;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- SPFv=spf1 ip4:143.198.53.28 ip4:161.47.34.7 include:emailsrvr.com include:_spf.google.com include:google.com ip4:129.121.134.233 ip4:67.212.192.36 ip4:173.203.187.108 ~all
- apple-domain-verification=evPria1UZ_wZvjhMsTt5QYSuq_x4jX-UPbYuiJa1zV4
- facebook-domain-verification=8lnsej4ch3frab11991kxg68whxs33
- google-site-verification=CSImWgLKvLCMQua5IArf4OpI3mXVIvAqXD3v-UhH8YE
- google-site-verification=HwMPqlkOTQMDbqsg7Y0SmDJ8aj1vmFR7KifSDjmjUlk
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 tucsonsentinel.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits