Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ussilica.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 14:12:42 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-2.mimecast.com
- us-smtp-inbound-1.mimecast.com
MX Priorities
- us-smtp-inbound-1.mimecast.com: 10
- us-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
- 34.226.46.235 ↩ ec2-34-226-46-235.compute-1.amazonaws.com
- 34.238.11.122 ↩ ec2-34-238-11-122.compute-1.amazonaws.com
- 54.89.106.200 ↩ ec2-54-89-106-200.compute-1.amazonaws.com
Mail Server IPs
- 170.10.128.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
SOA Record
Raw SOA
ns99.worldnic.com namehost.worldnic.com 126030420 10800 3600 604800 3600
Primary NS (mname)
ns99.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126030420
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns100.worldnic.com
ns99.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:129.213.168.21 ip4:216.71.150.115 ip4:192.48.98.10 ip4:192.48.98.254 ip4:173.252.165.208 ip4:67.20.178.231 include:spf.protection.outlook.com include:_netblocks.mimecast.com include:_spf.salesforce.com include:spf_c.oraclecloud.com a:smtp.ussilica.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
17 records- wT++I0WebrowOS0f8ONCluerBgKu6vTf+EqK4I579ckxU7hbu21XhNV50ZdM8WcmiQJeIS1GEs7C80KcScgovQ==
- uber-domain-verification=f920818c-b3a6-4df5-97e4-7ed41efcdc08
- 4bqqvsnokq4v72b9p0q72anf6e
- uber-domain-verification=4b14c194-0b57-428b-9a03-e205bb0d794e
- bd5iprfmp62gh381q4els81sme
- 9bftecsn1c6e8ut03cur23a2aa
- docusign=74aad5c9-1f49-4d1b-b336-d0a5739cacb1
- MS=ms59970467
- google-site-verification=G9Id83Zln52P-zqFi2pZ1QB9YbrypHvDm4cp5f8kMgU
- 641370bb0a88d796187086136f6f5d65466f131f73e91abb77
- knowbe4-site-verification=eaa6b03e715ec1c5ced98387df348759
- SPFv=spf1 ip4:129.213.168.21 ip4:216.71.150.115 ip4:192.48.98.10 ip4:192.48.98.254 ip4:173.252.165.208 ip4:67.20.178.231 include:spf.protection.outlook.com include:_netblocks.mimecast.com include:_spf.salesforce.com include:spf_c.oraclecloud.com a:smtp.ussilica.com -all
- gq34stt46734f3fqb93ksttbt4
- afbgiur1fpddtqthhet04ukktd
- nippr9bfg69pm5qvb9stat5vpu
- atlassian-domain-verification=7JAk5YDK5LkCei03qCASeleij4gzSjXUh7Phts1QBtcLf5RTGKESZti4NtmItwts
- google-site-verification=wGiQlmYtCIxNN7LRR5sfX6JSmJx6Hq2420-SXKxtVL4
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