Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
c3.co.nz
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-21 19:33:23 UTC · ↺ Refresh
MX Hostnames
- au-smtp-inbound-2.mimecast.com
- au-smtp-inbound-1.mimecast.com
MX Priorities
- au-smtp-inbound-1.mimecast.com: 10
- au-smtp-inbound-2.mimecast.com: 20
A / AAAA Records
- 35.189.13.120 ↩ 120.13.189.35.bc.googleusercontent.com
Mail Server IPs
- 103.96.20.26 ↩ au-smtp-inbound-1.mimecast.com
- 103.96.22.26 ↩ au-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
ns-1017.awsdns-63.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1017.awsdns-63.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-414.awsdns-51.com
ns-1017.awsdns-63.net
ns-1330.awsdns-38.org
ns-1698.awsdns-20.co.uk
SPF Record
✓ Strict (-all)
v=spf1 ip4:124.157.85.67 ip4:124.157.84.30 ip4:124.157.84.42 ip4:208.82.207.244 ip4:54.206.1.219 ip4:54.252.191.67 ip4:52.19.235.69 ip4:52.19.41.236 ip4:13.54.130.0 ip4:3.105.94.134 ip4:34.252.205.76 ip4:18.200.192.158 ip4:64.73.120.224/27 ip4:213.41.42.80/28 ip4:195.68.23.32/28 include:au._netblocks.mimecast.com include:mail.c3.co.nz include:spf.zoomcloud.co.nz include:spf.protection.outlook.com include:spf.sendinblue.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]; sp=reject; ri=84600; ASPF=r; ADKIM=r;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
mail._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
4 records- google-site-verification=72VLOXe5yG7NQ68nnn21hQ77Z-PZExiq0oasuWqLmBQ
- SPFv=spf1 ip4:124.157.85.67 ip4:124.157.84.30 ip4:124.157.84.42 ip4:208.82.207.244 ip4:54.206.1.219 ip4:54.252.191.67 ip4:52.19.235.69 ip4:52.19.41.236 ip4:13.54.130.0 ip4:3.105.94.134 ip4:34.252.205.76 ip4:18.200.192.158 ip4:64.73.120.224/27 ip4:213.41.42.80/28 ip4:195.68.23.32/28 include:au._netblocks.mimecast.com include:mail.c3.co.nz include:spf.zoomcloud.co.nz include:spf.protection.outlook.com include:spf.sendinblue.com -all
- 9466
- atlassian-domain-verification=lE5k4WM7546s9bJFNsWXjcS3bdhg2Aa4JAuEvqTJueLlLmxNZDf//NJx0ZFm7tH7
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 c3.co.nz
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits