Domain Overview
DNS: โ 2mo ago
Checker: โ 2mo ago
threestep.com
Yes
โ Yes
Mimecast
No
No
โ Yes
No
No
Checked via [email protected]
ยท 2026-04-03 10:52:33 UTC ยท โบ 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
- 23.185.0.3 (no PTR)
- 2620:12a:8001::3 (no PTR)
- 2620:12a:8000::3 (no PTR)
Mail Server IPs
- 170.10.132.141 โฉ us-smtp-inbound-1.mimecast.com
- 170.10.128.242 โฉ us-smtp-inbound-2.mimecast.com
- 170.10.128.221 โฉ us-smtp-inbound-2.mimecast.com
- 170.10.132.221 โฉ us-smtp-inbound-2.mimecast.com
- 170.10.132.242 โฉ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 โฉ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
pdns11.domaincontrol.com dns.jomax.net 2026032300 28800 7200 604800 600
Primary NS (mname)
pdns11.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026032300
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
pdns12.domaincontrol.com
pdns11.domaincontrol.com
SPF Record
โ Strict (-all)
v=spf1 a ip4:35.245.152.97 ip4:198.245.81.0/24 ip4:136.147.176.0/24 ip4:13.111.0.0/16 ip4:136.147.182.0/24 ip4:136.147.135.0/24 ip4:199.122.123.0/24 ip4:81.171.26.128/25 ip4:45.143.132.0/24 ip4:45.143.133.0/24 ip4:45.143.134.0/24 ip4:45.143.135.0/24 ip4:176.9.34.203 ip4:212.32.243.40 include:spf.protection.outlook.com include:_netblocks.mimecast.com include:sendgrid.net -all
๐ DNS lookups: 4/10
โ Hard fail (-all) โ strict enforcement
DMARC Record
โ p=none
v=DMARC1; p=none;
โ p=none โ monitoring only, no enforcement
๐ SPF alignment: Relaxed
ยท DKIM alignment: Relaxed
โ No aggregate reports (rua= not set)
DKIM Selectors
โ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
โ Public key: 392 chars (valid)
โ 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- miro-verification=f4f4b33ec8d600275e2838cadaf8b278d6077170
- atlassian-domain-verification=ayYrR/ttiDgkfHLuXa2zen5ROCYHN0IdHoaodh2jMLw3cpbZb/BPTCZr7ao1Y
- atlassian-sending-domain-verification=79048318-938d-49c4-865a-77ac9c1b954e
- google-site-verification=F08kHFjrxENDy9FOx7gVOc_fyIwbzi6smeGAX2z6s-0
- canva-site-verification=XsXTfKmuacQ5_897V1-eww
- MS=ms10685188
- pardot881663=8db3b1c10aad884c5a62301b1be6f596abb3b6ecaff7c1867e09cbd4aca7fe3b
- google-site-verification=7XYhuQOdEraEuQVKKhUJSCH94J2jxd80u42UWVcm6zM
- intercom-domain-validation=8e934835-069c-41db-bc62-e2eaeaadf9e4
- 0ed1fe018ac96515a2d5ca4d6d975a6429b99a2101
- apple-domain-verification=ZR6NoWNN0ebijEsu
- SPFv=spf1 a ip4:35.245.152.97 ip4:198.245.81.0/24 ip4:136.147.176.0/24 ip4:13.111.0.0/16 ip4:136.147.182.0/24 ip4:136.147.135.0/24 ip4:199.122.123.0/24 ip4:81.171.26.128/25 ip4:45.143.132.0/24 ip4:45.143.133.0/24 ip4:45.143.134.0/24 ip4:45.143.135.0/24 ip4:176.9.34.203 ip4:212.32.243.40 include:spf.protection.outlook.com include:_netblocks.mimecast.com include:sendgrid.net -all
- stripe-verification=2D0CE293F5E3DB4F93A7E8632ABEADB9285E7525510048BDA3007D3955867CAC
- google-site-verification=IpEwXaIey3bt82ZEEi4ss_M54EvpvCMQJgbk34tJiy4
- google-site-verification=OayFV-cDorQWK6tdFIW8KmJ4-vy7bo8HZFQlU3g_qFU
Free ยท No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts โ unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code ยท Works on any site
See demo & docs
Deep verification
Full email verification for threestep.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits