Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sonitrollexington.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 00:12:31 UTC · ↺ Refresh
MX Hostnames
- usb-smtp-inbound-1.mimecast.com
- usb-smtp-inbound-2.mimecast.com
MX Priorities
- usb-smtp-inbound-2.mimecast.com: 0
- usb-smtp-inbound-1.mimecast.com: 0
A / AAAA Records
- 138.197.224.47 (no PTR)
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
ns1-09.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1-09.azure-dns.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns4-09.azure-dns.info
ns1-09.azure-dns.com
ns2-09.azure-dns.net
ns3-09.azure-dns.org
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf-us.emailsignatures365.com include:usb._netblocks.mimecast.com include:sonitrollexington-com.spf.smtp25.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
5 records- v=verifydomain MS=3900369
- 0ed1fe018a014255b7103e4485883cd1f33e667068
- bsrUrVfYQ5eha/C6rLpfyA==
- MS=ms73585430
- SPFv=spf1 include:spf.protection.outlook.com include:spf-us.emailsignatures365.com include:usb._netblocks.mimecast.com include:sonitrollexington-com.spf.smtp25.com -all
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