Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
firstgroup.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 07:09:16 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
- us-smtp-inbound-1.mimecast.com: 50
- us-smtp-inbound-2.mimecast.com: 50
A / AAAA Records
- 204.74.99.103 (no PTR)
Mail Server IPs
- 170.10.128.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
udns1.cscdns.net premiumdns.support.neustar 2019103232 10800 1800 3600000 21600
Primary NS (mname)
udns1.cscdns.net
Admin Email (rname)
premiumdns@support.neustar
Serial
2019103232
Refresh
10800s
Retry
1800s
Expire
3600000s
Minimum TTL
21600s
Nameservers (NS)
udns2.cscdns.uk
udns1.cscdns.net
SPF Record
✓ Strict (-all)
v=spf1 ip4:216.143.12.211 ip4:52.235.41.159 ip4:148.163.129.48 ip4:193.240.183.247 ip4:208.117.55.133 include:us._netblocks.mimecast.com include:spf.protection.outlook.com include:mail.zendesk.com include:email-od.com include:cust-spf.exacttarget.com include:_spf.tivian.com include:_spf.salesforce.com -all
📊 DNS lookups: 7/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
k1._domainkey
s1._domainkey
s2._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
19 records- docusign=1aba22ef-fd07-42f2-8e9f-8fdceedc2d4f
- MS=ms91331169
- dsqglgjstttbnq3c4myr220b9rswv152
- onetrust-domain-verification=15caeb4a49ea43fc88562e7b04a18a4b
- docusign=91a08041-5b54-4965-a057-808cd736cacb
- taegis-domain-verification=fe8c0ebd491c0038c2418d12dba2a03b5ca6d819fef5e933930474bc2e4af9ad
- nintex.5aa24ac1815d15453b08a1d6
- atlassian-domain-verification=/3SHIhVTmKOz9m7Y5OfuH5ogsWk7gBqM8fRCa42xuqfaoA/VRIEpDJpNl9YjJxiY
- rmz1HCqrVtflB3uxvu9JvNx77C8i/93BrXUsKVc6qxk3L3Y/hZpeM4tzSZqk0pxRNQ3yU8qIwPIVbKeMBntSFA==
- apple-domain-verification=K38y54GlHIEoOzyS
- docusign=ad3266f0-de8c-49df-9eb5-d6f618479551
- F23TgLezKg61IxFeKSHiefmiQjG1rvn1k5E3vDt3/6fb58IdKUSTN6T5gDVDHO/bUqEF/iUQhgsFe2/jq0N+BQ==
- ypx097q5dksdz5vn2b2lp37pxk6n44jx
- apple-domain-verification=9nCo1wKR3uKeepdu
- google-site-verification=aJtMoLR7ajwCBPNZoNAGOathYHua2OOrIg-MhhGDXkk
- pardot_42692_*=ea9f011c5bd4a9e011c379e44d0b25ba5f4bf3b14b99d3f713b87e9f1b85a74f
- docusign=052d2576-4514-475f-9526-b27db009d7f3
- SPFv=spf1 ip4:216.143.12.211 ip4:52.235.41.159 ip4:148.163.129.48 ip4:193.240.183.247 ip4:208.117.55.133 include:us._netblocks.mimecast.com include:spf.protection.outlook.com include:mail.zendesk.com include:email-od.com include:cust-spf.exacttarget.com include:_spf.tivian.com include:_spf.salesforce.com -all
- DMARCv=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
Full email verification for firstgroup.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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