Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
5asec.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-24 05:20:37 UTC · ↺ Refresh
MX Hostnames
- 5asec-com.mail.protection.outlook.com
MX Priorities
- 5asec-com.mail.protection.outlook.com: 0
A / AAAA Records
- 51.255.47.72 ↩ 72.ip-51-255-47.eu
Mail Server IPs
- 52.101.166.2 ↩ mail-paup264cu00202.inbound.protection.outlook.com
- 52.101.166.0 ↩ mail-pa5p264cu00200.inbound.protection.outlook.com
- 52.101.164.0 ↩ mail-mrzp264cu00100.inbound.protection.outlook.com
- 52.101.166.1 ↩ mail-pr0p264cu01301.inbound.protection.outlook.com
- 2a01:111:f403:ca25::2 ↩ mail-paup264cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca25:: ↩ mail-pa5p264cu00200.inbound.protection.outlook.com
- 2a01:111:f403:ca25::1 ↩ mail-pr0p264cu01301.inbound.protection.outlook.com
- 2a01:111:f403:ca1e:: ↩ mail-mrzp264cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.gandi.net hostmaster.gandi.net 1773878400 10800 3600 604800 10800
Primary NS (mname)
ns1.gandi.net
Admin Email (rname)
hostmaster@gandi.net
Serial
1773878400
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
10800s
Nameservers (NS)
ns-203-a.gandi.net
ns-133-b.gandi.net
ns-101-c.gandi.net
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:spf.mailjet.com include:spf.infomaniak.ch include:mail.zendesk.com include:25894279.spf02.hubspotemail.net include:_spf.mlsend.com ip4:46.105.6.157/32 ip4:81.63.171.41/32 ip4:167.114.253.222 mx ip4:46.18.209.195 ip4:93.93.188.175 ip4:185.92.36.65 ip4:31.172.232.198 ip4:185.92.37.57 ip4:51.255.47.72 ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
k1._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- mailerlite-domain-verification=c5b659b1f47f51cfce6f76b155e8f8e0b4088f1b
- SPFv=spf1 include:spf.protection.outlook.com include:spf.mailjet.com include:spf.infomaniak.ch include:mail.zendesk.com include:25894279.spf02.hubspotemail.net include:_spf.mlsend.com ip4:46.105.6.157/32 ip4:81.63.171.41/32 ip4:167.114.253.222 mx ip4:46.18.209.195 ip4:93.93.188.175 ip4:185.92.36.65 ip4:31.172.232.198 ip4:185.92.37.57 ip4:51.255.47.72 ~all
- (En@$@$ers)
- Tt437kwq23
- atlassian-domain-verification=SRu0ZJJpXwllJ4PaJrfGeIGNTx5hmT8kZ5LDSb5EkPF6H6EWXVYnj8Y6dwRu1yst
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 5asec.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits