Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
coreconstruction.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 20:34:12 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-1.mimecast.com
- us-smtp-inbound-2.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 10
- us-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 141.193.213.10 (no PTR)
- 141.193.213.11 (no PTR)
Mail Server IPs
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
ns1-05.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1-05.azure-dns.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns1-05.azure-dns.com
ns2-05.azure-dns.net
ns3-05.azure-dns.org
ns4-05.azure-dns.info
SPF Record
✓ Soft Fail (~all)
v=spf1 include:us._netblocks.mimecast.com ip4:216.239.249.225 include:sendgrid.net ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
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
21 records- 57j7qqcp1kvg0ptlccdjdibmaf
- openai-domain-verification=dv-Nf1C21nvyQ9kurGchsEya4VQ
- Y29yZWNvbnN0cnVjdGlvbg==
- go546kmn9gc4k5msffu59l5btq
- smartsheet-site-validation=9_Fo43ihaYDE9wZY0mPSl3pP3YRsLHTh
- metrm70jeu48lttgie1ff1igc4
- amazon-business-verification=8b5fc78047f516a36dd8c296ccd0d1e82c070bfcaf8bc078b44023471093b4df
- SPFv=spf1 include:us._netblocks.mimecast.com ip4:216.239.249.225 include:sendgrid.net ~all
- ZOOM_verify_VEHw6MYLISaJqIBW2NM2ej
- h04hgggi8ubivkns99hvrkigfr
- 1lv56iebgl544og1vlvp589jmm
- docusign=f1b5cfb8-8622-408e-83f7-17ab25340822
- sophos-domain-verification=1dd7cb3b72752fd7dd816428f869669cfccfb6fd41c54f6d18907ac8c887ce29
- parallels-domain-verification=391420f14e5d4c92b8b8a1d1b14f73c569fa1452aeed47f3992dd121b5c5beaf
- s4BC9z3ABWa2JB6hSd6j3mqiXcjabU
- johfh48rb47k43rt7dnuk5410c
- 4214jqu2qin7ccr23c348dvqkl
- ji577i1ir3l7cf65976u5d4cch
- google-site-verification=0zRTRaruI6BH_xGssZYL0vwToee0lZ34up6NZY7ucUc
- coreconstruction.azurewebsites.net
- duo_sso_verification=jHVeFPpZYYGgr87UVGvye2ku0zzDRyI8CHRYOoL2Bs7vTkSr8pMDIE7JqZvgRLsh
Full email verification for coreconstruction.com
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