Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
johnholland.com.au
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 19:47:48 UTC · ↺ Refresh
MX Hostnames
- johnholland-com-au.mail.protection.outlook.com
MX Priorities
- johnholland-com-au.mail.protection.outlook.com: 0
A / AAAA Records
- 3.171.117.128 ↩ server-3-171-117-128.jfk50.r.cloudfront.net
- 3.171.117.96 ↩ server-3-171-117-96.jfk50.r.cloudfront.net
- 3.171.117.21
- 3.171.117.116
Mail Server IPs
- 52.101.149.1 ↩ mail-sy8pr01cu00101.inbound.protection.outlook.com
- 52.101.149.2 ↩ mail-sy5pr01cu00902.inbound.protection.outlook.com
- 52.101.151.5 ↩ mail-meupr01cu00305.inbound.protection.outlook.com
- 52.101.151.0 ↩ mail-meupr01cu00200.inbound.protection.outlook.com
- 2a01:111:f403:cc31::2 ↩ mail-sy5pr01cu00902.inbound.protection.outlook.com
- 2a01:111:f403:cc31::3 ↩ mail-sy2pr01cu00503.inbound.protection.outlook.com
- 2a01:111:f403:cc33::1 ↩ mail-meupr01cu00301.inbound.protection.outlook.com
- 2a01:111:f403:cc31:: ↩ mail-sy2pr01cu00300.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-1462.awsdns-54.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1462.awsdns-54.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-109.awsdns-13.com
ns-1462.awsdns-54.org
ns-1763.awsdns-28.co.uk
ns-747.awsdns-29.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- scdzfm3ynkwfzz354m08g2p5fk0rfkdk
- SPFv=spf1 include:spf.protection.outlook.com -all
- _01zhvoy37og8dtwcl89xog48vka6ibn
- _zw110md658ksw1o0a4t5ievxd13du2n
- apple-domain-verification=i2UPaUS32B9F1uf5
- jrwrhxpps5pp18dfmq243y8hmcl3s9xs
- lnbqwm32dv0ys77mhmykvtrzscpm9hxf
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 johnholland.com.au
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits