Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
heffler.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 20:11:44 UTC · ↺ Refresh
MX Hostnames
- usb-smtp-inbound-1.mimecast.com
- usb-smtp-inbound-2.mimecast.com
MX Priorities
- usb-smtp-inbound-1.mimecast.com: 10
- usb-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
- 104.18.38.166 (no PTR)
- 172.64.149.90 (no PTR)
- 2606:4700:4400::6812:26a6 (no PTR)
- 2606:4700:4409::ac40:955a (no PTR)
Mail Server IPs
- 170.10.150.242 ↩ usb-smtp-delivery-2.mimecast.com
SOA Record
Raw SOA
arya.ns.cloudflare.com dns.cloudflare.com 2397334830 10000 2400 604800 1800
Primary NS (mname)
arya.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397334830
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
arya.ns.cloudflare.com
nick.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:spf.messagelabs.com include:servers.mcsv.net ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
k1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: k1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
8 records- 2934359
- 3119179
- adobe-idp-site-verification=0bb689760931e00b5c7a31ea6c5f01c99452762d73c29e101a552f2617afb289
- box-domain-verification=84d7f2651c2ac2ac2a5bc53623442383107ca35787f58672fa8641791a68aec3
- sophos-domain-verification=0d790ef692c8a66a86c877296849d8ad84d5d74d
- SPFv=spf1 include:spf.protection.outlook.com include:spf.messagelabs.com include:servers.mcsv.net ~all
- v=verifydomain MS=2886232
- wpd13c4xv5h33trgjc023txvtj4x4x9t
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