Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
symbio.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-02 06:15:06 UTC · ↺ Refresh
MX Hostnames
- mxbiz2.qq.com
- mxbiz1.qq.com
MX Priorities
- mxbiz1.qq.com: 5
- mxbiz2.qq.com: 10
A / AAAA Records
- 135.181.114.249 ↩ fi-t2.seravo.net
- 135.181.214.124 ↩ fi-t1.seravo.net
- 2a01:4f9:4b:1ac6::2 ↩ fi-t2.seravo.net
- 2a01:4f9:3a:2c43::2 ↩ fi-t1.seravo.net
Mail Server IPs
- 103.86.78.3 (no PTR)
- 103.86.78.2 (no PTR)
- 43.154.252.16 (no PTR)
- 43.154.252.202 (no PTR)
SOA Record
Raw SOA
david.dnspod.net freednsadmin.dnspod.com 1772095198 3600 180 1209600 180
Primary NS (mname)
david.dnspod.net
Admin Email (rname)
freednsadmin@dnspod.com
Serial
1772095198
Refresh
3600s
Retry
180s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
david.dnspod.net
gregary.dnspod.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.mail.qq.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
6 records- atlassian-domain-verification=RyrMxZDQS6iUpPZoS6EZwOj6z0KeQaOcEu9pj/aj/iZlR4i4WV2zcG1WKC7DOeGg
- MS=ms12536382
- SPFv=spf1 include:spf.mail.qq.com -all
- apple-domain-verification=cCCAgr8hRMo4oh24
- "docusign=68ac36a9-6fa2-462a-a841-0031dbf7d769"
- google-site-verification=kXF-H_4Gh0fto3Zn3sX1TvsC2y1qyre4CLhJihXcsy0
Full email verification for symbio.com
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