Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
berkshire.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 14:07:27 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
- 141.193.213.20 (no PTR)
- 141.193.213.21 (no PTR)
Mail Server IPs
- 170.10.128.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
cleo.ns.cloudflare.com dns.cloudflare.com 2398708619 10000 2400 604800 1800
Primary NS (mname)
cleo.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398708619
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
cleo.ns.cloudflare.com
marjory.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:us._netblocks.mimecast.com ip4:98.101.98.186 include:spf.protection.outlook.com include:spf.exclaimer.net include:whitelabel.berkshire.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; ri=86400
~ Quarantine — good protection (failing mail goes to spam)
📋 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
15 records- _d4b18gupxt2ja2jf8fbrribw1yjijuf
- google-site-verification=KeDuXM9TTi0hgLzZnMCDssSfSDv6ItriTi1GPkAcB_0
- infor-cloudsuite-domain-verification=PQ65Y6NHTGNY2YSVKPHU24QLCUBUA5CTTTPSTY9EZJQFSGK5K9X5HT6XATJMGCCQ
- 1password-site-verification=SJNGBWC6PRHIDC5S75RXWABXZI
- SPFv=spf1 include:us._netblocks.mimecast.com ip4:98.101.98.186 include:spf.protection.outlook.com include:spf.exclaimer.net include:whitelabel.berkshire.com -all
- google-site-verification=UXjb2gHnmS2HsCyFvYLPzY8PkZYfX863ECdYfO-duC4
- apple-domain-verification=lWnqeXpcgwnTyi5G
- duo_sso_verification=J5hdBQc58wdumpUOkfT8qI97Pp3uxCecusD7bvEwZ7wxQult03bLxd1nGH3NxFhS
- 0wxgbjvfkyyrzvnqjn7bmgjk0fw8jkyz
- 0ed1fe018a9622549458634466ad20ceb08e29ea2e
- ZOOM_verify_TH0GUmi9QAiDp5cZ5fMl6w
- wrike-verification=NDcxMzA2MTpkNmFhOTk1YTExM2U1Y2Y5ZDc5YjY5M2ZkOGEzMmEzZTRiMmNkZTYzZThkYjgzOWE3NjUxYTg3Y2M5NjNmYWYw
- adobe-idp-site-verification=5c429003700966799d76c494dde637e98bc7c3bf0e199b83fc61c8c20ffbc1c4
- google-site-verification=oXhTnwPgVBMVFB43_GAG_ssGtD-h2c-DShFT67MN0gM
- Foxit-domain-verification=033854af501db9535e7258d8fca812e4
Full email verification for berkshire.com
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