Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
corsair.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 05:53:54 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-1.mimecast.com
- us-smtp-inbound-2.mimecast.com
MX Priorities
- us-smtp-inbound-1.mimecast.com: 10
- us-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
- 104.18.24.228 (no PTR)
- 104.18.25.228 (no PTR)
- 2606:4700::6812:19e4 (no PTR)
- 2606:4700::6812:18e4 (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
- 170.10.132.242 ↩ us-smtp-inbound-1.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-2.mimecast.com
SOA Record
Raw SOA
huxley.ns.cloudflare.com dns.cloudflare.com 2400567159 10000 2400 604800 1800
Primary NS (mname)
huxley.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2400567159
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
shaz.ns.cloudflare.com
huxley.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:12.23.21.116 ip4:63.137.180.136/29 ip4:54.240.58.216/30 ip4:198.37.159.2 ip4:168.245.16.120 ip4:168.245.44.103 include:_spf.centercode.com include:spf.protection.outlook.com include:amazonses.com include:us._netblocks.mimecast.com include:mail.zendesk.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1:d:s
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
21 records- openai-domain-verification=dv-87C8QljRnI23qmnIMaJidopW
- globalsign-domain-verification=atC1h9nhBBHgJJL0dbxrKZfIRpWDpmDWBnKvansTJb
- facebook-domain-verification=kh61z87lvqtdd47i0wtt29cbzr40ap
- shopify-verification-code=qFnuzKNOMgSiXdA0gyYU4E9CfoSUEv
- kytf6.x.incapdns.net
- globalsign-domain-verification=fc3d995732e06a0e8bcfe897877ce700
- h1-domain-verification=vhoRpk6QscTQE7xGPv7tnDSNQvSRSf6MwQkvBz6S5y8MWTuM
- _sh9g29xtkguvak3gkuh2mdvv2li9i39
- google-site-verification=RO8gtlWKSy_v3ypr5etX-anFeFGp_x_jVd_vhIYg-Fk
- 9b953d34dedf4bc521ac54a18d26c9137b3ce2ea478e4615e3
- google-site-verification=AGCcHj2liXl0eGHNZujA1HDqPNZvqYzHbuR0CPI_l2M
- D5ELtP2BheOJJ9mGU8KhZAdgmIU5HXWZpNPe6SlVeZvZg0WOUPCDAV6cG1yKWRoYTUs9t1XFTnvbsr0MCM4y/w==
- atlassian-domain-verification=ftFWXhFixkagAjM/qx0cEg2iqUX3C/DYcbN7BqhYlPuEFFxnXBw3tzqbHZTtVKZf
- globalsign-domain-verification=0d7a02642ac2c5d5fe1cb827d977d507
- globalsign-domain-verification=be1d805be00eb6b1daea9c4cead1367b
- stripe-verification=15bc75a00991139790d4322de8daf596d62cc737a50abd920aac08fe3866dbc6
- apple-domain-verification=0IZFqWVMMvA7RTSm
- google-site-verification=tk4HaM3e8ZAgGrStOHaDQTFt92R7d7mlqWQ9kIxbR3Q
- anthropic-domain-verification-yk7wsq=W71Nh86CWsh6vDMbqXchSRi7x
- tiktok-developers-site-verification=5EyKoPocqrG1emxgzYFDadBIT3DSXToB
- SPFv=spf1 ip4:12.23.21.116 ip4:63.137.180.136/29 ip4:54.240.58.216/30 ip4:198.37.159.2 ip4:168.245.16.120 ip4:168.245.44.103 include:_spf.centercode.com include:spf.protection.outlook.com include:amazonses.com include:us._netblocks.mimecast.com include:mail.zendesk.com -all
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for corsair.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits