Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
td-engineers.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 11:31:36 UTC · ↺ Refresh
MX Hostnames
- td-engineers.com.2.0001.arsmtp.com
- td-engineers.com.1.0001.arsmtp.com
MX Priorities
- td-engineers.com.1.0001.arsmtp.com: 10
- td-engineers.com.2.0001.arsmtp.com: 20
A / AAAA Records
- 185.230.63.107 ↩ unalocated.63.wixsite.com
Mail Server IPs
- 8.31.233.134 ↩ server282.appriver.com
- 8.19.118.51 ↩ server283.appriver.com
SOA Record
Raw SOA
ns20.digicertdns.com dns.digicertdns.com 2009010114 43200 3600 1209600 180
Primary NS (mname)
ns20.digicertdns.com
Admin Email (rname)
dns@digicertdns.com
Serial
2009010114
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns20.digicertdns.com
ns24.digicertdns.net
ns22.digicertdns.com
ns23.digicertdns.net
ns21.digicertdns.com
ns25.digicertdns.net
SPF Record
✓ Strict (-all)
v=spf1 a:td-mail.com include:spf.protection.outlook.com ip4:66.196.237.26 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; rf=afrf; sp=reject; fo=1; pct=10; adkim=s; aspf=s
✓ Reject — strongest protection
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
⚠ Policy applies to 10% of failing messages only
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
1 record- SPFv=spf1 a:td-mail.com include:spf.protection.outlook.com ip4:66.196.237.26 -all
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