Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
coorstek.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 21:54:20 UTC · ↺ Refresh
MX Hostnames
- usb-smtp-inbound-1.mimecast.com
- usb-smtp-inbound-2.mimecast.com
MX Priorities
- usb-smtp-inbound-1.mimecast.com: 10
- usb-smtp-inbound-2.mimecast.com: 10
A / AAAA Records
- 205.168.22.112 ↩ host112.coorstek.com
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
pdns03.domaincontrol.com dns.jomax.net 2026032400 28800 7200 604800 600
Primary NS (mname)
pdns03.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026032400
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
pdns04.domaincontrol.com
pdns03.domaincontrol.com
SPF Record
✓ Soft Fail (~all)
v=spf1 redirect=453w504f._spf._d.mim.ec
📊 DNS lookups: 1/10
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: 392 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
10 records- sophos-domain-verification=d5e77da37f83709c11d72500626d2382962345144195a06eadf6d35db064c443
- teamviewer-sso-verification=04ad782b36d74e949007e7f307012177
- SPFv=spf1 redirect=453w504f._spf._d.mim.ec
- smartsheet-site-validation=k4QPYPIr3JPnG36iV2t4NsQg_AsekZxG
- docusign=25fa2550-f2a9-4e07-bc8b-92549a712b26
- _rx4lesyvarstoxg4h6mpghyjy3yuc6r
- sophos-domain-verification=14d14ba4c2566561bc358a267ab0704336d70498ca3398d0343cd532d570d4d9
- google-site-verification=Y0sU4_3g0aCasjy4yAUCC9U_LND8-trZfcrkxno8lDo
- sophos-domain-verification=ec2adbc8ac17e118d0cbd31c8d3cda34c59fab208e2ff96a5f6b84c447d0346b
- VDTnVObIuJpqykvE7juVHurSzVC3U4dKRKzoJGEAjnInJ9egKGSYeKSGDC6eV55phFJG9iLhJI1oyHEfVxiNOA==
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