Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
vacantunits.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-17 20:06:38 UTC · ↺ Refresh
MX Hostnames
- eu-smtp-inbound-1.mimecast.com
- eu-smtp-inbound-1.mimecast.com
- vacantunits-com.mail.protection.outlook.com
MX Priorities
- eu-smtp-inbound-1.mimecast.com: 10
- eu-smtp-inbound-1.mimecast.com: 0
- vacantunits-com.mail.protection.outlook.com: 100
A / AAAA Records
- 185.194.90.17
Mail Server IPs
- 91.220.42.201 ↩ eu-smtp-inbound-1.mimecast.com
- 195.130.217.241 ↩ eu-smtp-inbound-1.mimecast.com
- 91.220.42.211 ↩ eu-smtp-inbound-1.mimecast.com
- 195.130.217.201 ↩ eu-smtp-inbound-1.mimecast.com
- 195.130.217.211 ↩ eu-smtp-inbound-2.mimecast.com
- 91.220.42.241 ↩ eu-smtp-inbound-2.mimecast.com
- 52.101.73.2 ↩ mail-as9pr07cu00302.inbound.protection.outlook.com
- 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
- 52.101.73.1 ↩ mail-am3pr04cu00501.inbound.protection.outlook.com
- 52.101.73.26 ↩ mail-as9pr05cu01302.inbound.protection.outlook.com
- 2a01:111:f403:ca09::4
- 2a01:111:f403:ca09::6
- 2a01:111:f403:ca04::10
- 2a01:111:f403:ca09::8
SOA Record
Raw SOA
hoth.spitfireuk.net postmaster.spitfireuk.net 2022031801 28800 7200 604800 3600
Primary NS (mname)
hoth.spitfireuk.net
Admin Email (rname)
postmaster@spitfireuk.net
Serial
2022031801
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
endor.spitfireuk.net
hoth.spitfireuk.net
SPF Record
✓ Strict (-all)
v=spf1 include:_netblocks.mimecast.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none; ri=86400
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 include:_netblocks.mimecast.com include:spf.protection.outlook.com -all
- 0ed1fe018a21fe848c3d6e489da44efb3aeb3d0f89
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 vacantunits.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits