Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tomduffy.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 20:02:33 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
- us-smtp-inbound-1.mimecast.com: 10
- us-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
- 151.101.1.124 (no PTR)
Mail Server IPs
- 170.10.132.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
ns71.worldnic.com namehost.worldnic.com 125071201 10800 3600 604800 3600
Primary NS (mname)
ns71.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125071201
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns72.worldnic.com
ns71.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 a:dispatch-us.ppe-hosted.com include:spf.protection.outlook.com include:_spf.google.com include:camail.docusign.net include:spf.constantcontact.com include:spf.zohomail360.com include:us._netblocks.mimecast.com -all
📊 DNS lookups: 7/10
✓ 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
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
8 records- zoho-verification=zb41178647.zmverify.zoho.com
- ppe-4d670e07d19911b317c8e19c1daf9dde40cfe256
- apple-domain-verification=eJHpkfQKXE2ICk7lGNQOi6GatvrxIX9KI9gQjuVhNY4
- MS=ms38472110
- SPFv=spf1 a:dispatch-us.ppe-hosted.com include:spf.protection.outlook.com include:_spf.google.com include:camail.docusign.net include:spf.constantcontact.com include:spf.zohomail360.com include:us._netblocks.mimecast.com -all
- 0ed1fe018a281f2a0a1ac74ea883cf93c4da98e0e9
- docusign=9b8d9b97-4eef-4e06-8b67-1b775f23b098
- google-site-verification=exZ2JprhdBF_z1gIUQCFaslhVvhIti39yu326H7A0IM
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