Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
thomas-and-company.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 01:53:07 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-1.mimecast.com
- us-smtp-inbound-2.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 10
- us-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 141.193.213.20 (no PTR)
- 141.193.213.21 (no PTR)
Mail Server IPs
- 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.221 ↩ 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
- 170.10.128.242 ↩ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
ns20.digicertdns.com dns.digicertdns.com 2009040923 43200 3600 1209600 180
Primary NS (mname)
ns20.digicertdns.com
Admin Email (rname)
dns@digicertdns.com
Serial
2009040923
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns11.dnsmadeeasy.com
ns13.dnsmadeeasy.com
ns14.dnsmadeeasy.com
ns10.dnsmadeeasy.com
ns15.dnsmadeeasy.com
ns12.dnsmadeeasy.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:34.224.197.222/32 ip4:52.54.10.187/32 include:sendgrid.net include:us._netblocks.mimecast.com include:_spf.sendergen.com include:mail.zendesk.com include:sent-via.netsuite.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:[email protected];
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
13 records- SPFv=spf1 ip4:34.224.197.222/32 ip4:52.54.10.187/32 include:sendgrid.net include:us._netblocks.mimecast.com include:_spf.sendergen.com include:mail.zendesk.com include:sent-via.netsuite.com -all
- sending_domain1067872=28539723c65a63cc72318420b741e522dcf18f97fee0bc32af7b103289d15f88
- MS=59FA6519ACDCFD7B7D58287895FF1D0B75362B51
- globalsign-domain-verification=BC6593B69D2F5DB41EB752BAD85BB4FD
- site24x7-signals-domain-verification=fa424c40c5c68b39a5b4bde81c30bbc7
- google-site-verification=D7Tfo3RGNlyjNpLy1s1Zmad8AO-3zfpAm_LX6wovsQ0
- z9ooeQ4KhLBjrvOmBllJzReVVeTIekMHilXvXqJpiFxxaxachKF3vHNDOgN4qiLgWehradetTIncc7WW9xxkIA==
- zoho-verification=zb83301075.zmverify.zoho.com
- pardot537282=1fcbb4b7fe81990b3e221c1fb8d66162d9810b669400ed106d47e2e388b1b818
- logmein-verification-code=00a891f3-751c-4c9c-bf03-86177b74f9c0
- docusign=38ccc3ff-9358-4739-acdc-d1107aa22b78
- pardot1067872=179c4f553a72b01dc8a66c775dd10dd1316a7f92396b7635c359d52a22b5b526
- apple-domain-verification=HkMFqvTiqkkTzpN1
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