Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
spdconstruction.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 03:03:52 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 21
- us-smtp-inbound-1.mimecast.com: 11
A / AAAA Records
- 34.174.62.61 ↩ 61.62.174.34.bc.googleusercontent.com
Mail Server IPs
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
ns1.bdm.microsoftonline.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1.bdm.microsoftonline.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns2.bdm.microsoftonline.com
ns3.bdm.microsoftonline.com
ns4.bdm.microsoftonline.com
ns1.bdm.microsoftonline.com
SPF Record
✓ Strict (-all)
v=spf1 include:us._netblocks.mimecast.com include:sendgrid.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
4 records- mscid=BTmKhIJPWrm6Nw/7rPuZ/tHRs/hM9BP6z7L7txI2rUEfBlEQ69ltHfTsScceqN4DPZIBCTSuo4SLoi1L3k6U2Q==
- SPFv=spf1 include:us._netblocks.mimecast.com include:sendgrid.net -all
- 0ed1fe018a31cbb1cfc4a94760b7b92cd9bf2a1a0d
- apple-domain-verification=reTcuPrfGZt5xhoq
Full email verification for spdconstruction.com
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