Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mazzonicenter.org
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 13:29:35 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-1.mimecast.com
- us-smtp-inbound-2.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 0
- us-smtp-inbound-1.mimecast.com: 0
A / AAAA Records
- 23.185.0.1 (no PTR)
- 2620:12a:8000::1 (no PTR)
- 2620:12a:8001::1 (no PTR)
Mail Server IPs
- 170.10.128.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
oswald.ns.cloudflare.com dns.cloudflare.com 2399064642 10000 2400 604800 1800
Primary NS (mname)
oswald.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399064642
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
ulla.ns.cloudflare.com
oswald.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 a:dispatch-us.ppe-hosted.com mx a include:sendgrid.net include:spf.predictiveresponse.net include:us._netblocks.mimecast.com include:spf.protection.outlook.com include:mailgun.org ~all
📊 DNS lookups: 8/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; pct=100; fo=1; ri=3600; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
6 records- ppe-6b9e8429697cc4c6e7e0
- SPFv=spf1 a:dispatch-us.ppe-hosted.com mx a include:sendgrid.net include:spf.predictiveresponse.net include:us._netblocks.mimecast.com include:spf.protection.outlook.com include:mailgun.org ~all
- 0ed1fe018a5bb414099b4347ef995d15c85c6220a3
- MS=1EFE0B6C6D8E174AB24BE8B9A1C6E7225B76D22D
- canva-site-verification=oLogluncZLHFkiCTYzc9VA
- facebook-domain-verification=0wktbsegw5suczvenc6z2lhocx4h1y
Full email verification for mazzonicenter.org
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits