Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
armstronginternational.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-22 02:11:48 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
No priority data.
A / AAAA Records
- 141.193.213.20
- 141.193.213.21
Mail Server IPs
No IPs resolved.
SOA Record
No SOA record found.
Nameservers (NS)
pdns02.domaincontrol.com
pdns01.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:us._netblocks.mimecast.com include:spf.protection.outlook.com include:_spf.salesforce.com include:aspmx.pardot.com include:_spf.psm.knowbe4.com ip4:50.216.81.0/24 -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ri=86400
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
8 records- asv=eb852144b97f824f78e44ec53f1422ad
- pardot789403=52f496507f4feedae9922242ddd88d2b6c61488d130543561c15ba6c5b5438e2
- apple-domain-verification=unwWrteLefiHnjHv
- duo_sso_verification=jJIvf7JN4x8KzVrEGQWLw4IqoREeveda0kGTsMJGyywtIl0EieiRb7MrdLGnMa7h
- gRoBnEoioykWJwPas94635s4NQ/I2HKhep+Zzqkw6kFFBd5RjeR/K/mxITX3e5lChY0Ah4ynYJ7GP8XgkmCKFw==
- 4SqisT7ABTvzOwmZ5xOWSV4HmYgzX5W5hLTHWEbIaETw6r5dLM3D4/sXGeKDiqr+AgtUUiFdGe8pQH+51cFLlg==
- google-site-verification=wSBkasA8voGQhW4h-_pDaQScahlq5y4_BwQraRwVX7Y
- SPFv=spf1 include:us._netblocks.mimecast.com include:spf.protection.outlook.com include:_spf.salesforce.com include:aspmx.pardot.com include:_spf.psm.knowbe4.com ip4:50.216.81.0/24 -all
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