Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
biochem.net
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 09:31:58 UTC · ↺ Refresh
MX Hostnames
- mail.biochem.net
MX Priorities
- mail.biochem.net: 10
A / AAAA Records
- 76.76.21.21 (no PTR)
Mail Server IPs
- 91.249.152.100 ↩ mail.biochem.net
SOA Record
Raw SOA
ns33.domaincontrol.com dns.jomax.net 2025112700 28800 7200 604800 600
Primary NS (mname)
ns33.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025112700
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns33.domaincontrol.com
ns34.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 a mx ip4:90.187.219.45 include:spf.crsend.com include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:ws02-securityeducation.com -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; aspf=r; rua=mailto:[email protected]; pct=100;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
7 records- MS=ms93130451
- bw=itD78NqbcgepersAZvFpEbzDgmcPNcOmpMMUtlWCrZ2T
- apple-domain-verification=fv5NE5J4Gab6Zp9h
- google-site-verification=QyImfYQDuLUmYAK-9CkPPpffJChfKyjdpOGUnct5rnY
- google-site-verification=DuastocBPUj3XPchSHoyQ1W13I4LT42LH-3VgIuIPXQ
- ppe-5b44104715c951f70f633370d5a3ab3086b5a001
- SPFv=spf1 a mx ip4:90.187.219.45 include:spf.crsend.com include:spf.protection.outlook.com include:spf-de.emailsignatures365.com include:ws02-securityeducation.com -all
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