Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
katten.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-20 18:13:01 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 10
- us-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 40.112.142.148 (no PTR)
Mail Server IPs
- 170.10.128.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
ns20.digicertdns.com dns.digicertdns.com 2009010484 43200 3600 1209600 180
Primary NS (mname)
ns20.digicertdns.com
Admin Email (rname)
dns@digicertdns.com
Serial
2009010484
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns12.dnsmadeeasy.com
ns13.dnsmadeeasy.com
ns11.dnsmadeeasy.com
ns15.dnsmadeeasy.com
ns10.dnsmadeeasy.com
ns14.dnsmadeeasy.com
SPF Record
✓ Soft Fail (~all)
v=spf1 mx ip4:207.126.127.82 ip4:207.145.192.155 ip4:198.97.224.0/24 include:us._netblocks.mimecast.com include:spf1-us.vx-email.com ~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
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
6 records- RRB7G7KATUSPOPPSA6FZA0LDUTNR1QQLD7UK7LUA
- _3bszr69oxmuz0daikuoew95fdyy0rz8
- dtd644lvrpd64ndknwf3zh2s1xz35znd
- docusign=fafb6971-e5f7-4351-ade7-dffaba3ba9db
- SPFv=spf1 mx ip4:207.126.127.82 ip4:207.145.192.155 ip4:198.97.224.0/24 include:us._netblocks.mimecast.com include:spf1-us.vx-email.com ~all
- sgrfpck4zv2pw3wkb319dkp69cp09tx0
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