Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
national-plastic.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 01:59:34 UTC · ↺ Refresh
MX Hostnames
- nationalplastic-com02b.mail.protection.outlook.com
MX Priorities
- nationalplastic-com02b.mail.protection.outlook.com: 0
A / AAAA Records
- 69.174.48.44 (no PTR)
Mail Server IPs
- 52.101.148.1 ↩ mail-dx1p273cu00301.inbound.protection.outlook.com
- 52.101.147.1 ↩ mail-au1p273cu00101.inbound.protection.outlook.com
- 52.101.148.3 ↩ mail-dx3p273cu00103.inbound.protection.outlook.com
- 52.101.148.13 ↩ mail-dx2p273cu00205.inbound.protection.outlook.com
- 2a01:111:f403:cc30:: ↩ mail-dx1p273cu00300.inbound.protection.outlook.com
- 2a01:111:f403:cc2f:: ↩ mail-au1p273cu00100.inbound.protection.outlook.com
- 2a01:111:f403:cc30::1 ↩ mail-dx3p273cu00101.inbound.protection.outlook.com
- 2a01:111:f403:cc30::3 ↩ mail-dx2p273cu00203.inbound.protection.outlook.com
SOA Record
Raw SOA
ns3.worldnic.com namehost\@worldnic.com 124111105 10800 3600 604800 3600
Primary NS (mname)
ns3.worldnic.com
Admin Email (rname)
namehost\@worldnic@com
Serial
124111105
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns3.worldnic.com
ns4.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:209.182.208.49 include:smtp.servconfig.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
V=DMARC1; p=reject; pct=100;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
default._domainkey
✓ Public key: 392 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
2 records- SPFv=spf1 include:spf.protection.outlook.com ip4:209.182.208.49 include:smtp.servconfig.com -all
- MS=ms49244794
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 national-plastic.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits