Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
flstransport.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 15:35:42 UTC · ↺ Refresh
MX Hostnames
- usb-smtp-inbound-1.mimecast.com
- usb-smtp-inbound-2.mimecast.com
MX Priorities
- usb-smtp-inbound-2.mimecast.com: 20
- usb-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 50.6.153.150 ↩ 50-6-153-150.unifiedlayer.com
Mail Server IPs
- 170.10.150.242 ↩ usb-smtp-delivery-2.mimecast.com
- 170.10.152.242 ↩ usb-smtp-delivery-2.mimecast.com
SOA Record
Raw SOA
ns-1147.awsdns-15.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1147.awsdns-15.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1831.awsdns-36.co.uk
ns-560.awsdns-06.net
ns-1147.awsdns-15.org
ns-169.awsdns-21.com
SPF Record
✓ Strict (-all)
v=spf1 include:usb._netblocks.mimecast.com include:spf.protection.outlook.com include:spf.emailsignatures365.com include:spf.constantcontact.com include:_spf.psm.knowbe4.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;rua=mailto:[email protected];
✓ 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
5 records- bWE5g1pY3tzgndeHBEmDA0ohvSEKUiJaWUaWeyVFE4dgn1KAig2QAVBxBUp1fi0/xRpCZQ9YQvlFTwI2KWwFZg==
- intacct-esk=04A33323B67398B1E0633A06690A61FD
- SPFv=spf1 include:usb._netblocks.mimecast.com include:spf.protection.outlook.com include:spf.emailsignatures365.com include:spf.constantcontact.com include:_spf.psm.knowbe4.com -all
- xbf9WiXrZWlPnUGOQqlGaZelBQ8a5noEbDJT9Nmk8+NCpZz7G9utTa5gD39koLnp+OnH/pGunKcScu/ViV2Gxw==
- apple-domain-verification=nQh0riTtseJYIh0p
Full email verification for flstransport.com
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