Domain Overview
DNS: ✓ 20d ago
Checker: ✓ 20d ago
sterlingdesignassociates.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-21 11:30:29 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 10
- us-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 208.80.122.243 ↩ redirection.constellix.com
- 208.80.123.25 ↩ redirection.constellix.com
- 208.80.123.217 ↩ redirection.constellix.com
- 208.80.122.87 ↩ redirection.constellix.com
- 2600:1803:10b::19
- 2600:1803:10c::6
- 2600:1803:10d::70
- 2600:1803:10a::64
Mail Server IPs
- 170.10.132.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
ns11.constellix.com dns.constellix.com 2015010119 43200 3600 1209600 180
Primary NS (mname)
ns11.constellix.com
Admin Email (rname)
dns@constellix.com
Serial
2015010119
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns51.constellix.net
ns61.constellix.net
ns11.constellix.com
ns21.constellix.com
ns31.constellix.com
ns41.constellix.net
SPF Record
✓ Soft Fail (~all)
v=spf1 a:mail.farnsworthgrp.com include:sendgrid.net include:us._netblocks.mimecast.com ip4:198.37.147.129 ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- MS=ms32587777
- 0ed1fe018a959d31cb7b1f447a97222eaecd2031ee
- SPFv=spf1 a:mail.farnsworthgrp.com include:sendgrid.net include:us._netblocks.mimecast.com ip4:198.37.147.129 ~all
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