Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sightmd.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 11:46:03 UTC · ↺ Refresh
MX Hostnames
- usb-smtp-inbound-2.mimecast.com
- usb-smtp-inbound-1.mimecast.com
MX Priorities
- usb-smtp-inbound-1.mimecast.com: 10
- usb-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
- 141.193.213.10 (no PTR)
- 141.193.213.11 (no PTR)
Mail Server IPs
- 170.10.152.242 ↩ usb-smtp-delivery-2.mimecast.com
- 170.10.150.242 ↩ usb-smtp-delivery-2.mimecast.com
SOA Record
Raw SOA
ns-cloud-c1.googledomains.com cloud-dns-hostmaster.google.com 30 21600 3600 259200 300
Primary NS (mname)
ns-cloud-c1.googledomains.com
Admin Email (rname)
cloud-dns-hostmaster@google.com
Serial
30
Refresh
21600s
Retry
3600s
Expire
259200s
Minimum TTL
300s
Nameservers (NS)
ns-cloud-c2.googledomains.com
ns-cloud-c4.googledomains.com
ns-cloud-c3.googledomains.com
ns-cloud-c1.googledomains.com
SPF Record
✓ Strict (-all)
v=spf1 include:usb._netblocks.mimecast.com include:_spf.google.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected], mailto:[email protected]; pct=100; adkim=s; aspf=s
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected], mailto:[email protected]
DKIM Selectors
✓ 1 found
google._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- MS=ms52512642
- SPFv=spf1 include:usb._netblocks.mimecast.com include:_spf.google.com -all
- 0ed1fe018aebb6be2173f8486e8d0a9992cf444c5b
- google-site-verification=iqFFd8FoUWu1jFbBGR4KJqcscvLwfqCo-841Yu4ZlpM
- ij3o89hdcfrusv90min9h9tj9p
Full email verification for sightmd.com
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