DNS Report for chinaunicom.cn

• ns.bta.net.cn

  • IPv4: 202.96.0.133
  • IPv6: 2408:8000:1010:2::10
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

• ns2.bta.net.cn

  • IPv4: 202.106.196.28
  • IPv6: 2408:8000:1010:1::10
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

Nameserver Count - OK

• ns.bta.net.cn

  • Status: Responded
  • IP(s): 120.52.99.224
  • TTL: 300 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed: The DNS operation timed out.

• ns2.bta.net.cn

  • Status: Responded
  • IP(s): 120.52.99.224
  • TTL: 300 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed: The DNS operation timed out.

ns.bta.net.cn

• Serial: 2024091302
• Refresh: 10800
• Retry: 3600
• Expire: 3600000
• Minimum TTL: 3600

ns2.bta.net.cn

• Serial: 2024091302
• Refresh: 10800
• Retry: 3600
• Expire: 3600000
• Minimum TTL: 3600

Serial: 2024091302 - OK

REFRESH: 10800 - OK

RETRY: 3600 - OK

EXPIRE: 3600000 - OK

MINIMUM TTL: 3600 - OK

ns.bta.net.cn

• 10 maila.mailex.chinaunicom.cn ( 123.138.59.138 )
• 15 mailb.mailex.chinaunicom.cn ( 106.74.10.124 )
• 20 mailc.mailex.Chinaunicom.cn ( 123.138.59.138 )

ns2.bta.net.cn

• 10 maila.mailex.chinaunicom.cn ( 123.138.59.138 )
• 15 mailb.mailex.chinaunicom.cn ( 106.74.10.124 )
• 20 mailc.mailex.Chinaunicom.cn ( 123.138.59.138 )

MX Record Consistency - OK

MX Record Count - OK

• 124.10.74.106.in-addr.arpa -> sendd.mailex.chinaunicom.cn
• 138.59.138.123.in-addr.arpa -> No PTR record found: The DNS query name does not exist: 138.59.138.123.in-addr.arpa.
• 138.59.138.123.in-addr.arpa -> No PTR record found: The DNS query name does not exist: 138.59.138.123.in-addr.arpa.

PTR Records - OK

• Signed: No
• Validation: Failed
• DNSKEY Records: None
• DS Records in parent zone: None
• DS at Parent: None

DNSSEC - Note: Domain is not signed with DNSSEC

Error: No DNSSEC records found

SPF Record Published: Passed

Multiple SPF Records: Passed

SPF Record 1:

• Record: v=spf1 ip4:106.74.10.124 ip4:111.198.162.22/31 ip4:111.198.162.24 ip4:111.198.163.22/31 ip4:111.198.163.24 ip4:210.53.66.230/31 ip4:123.138.59.136 ip4:123.138.59.137 ~all
• SPF Syntax: Passed
• Deprecated Elements: Passed
• IP Addresses: 106.74.10.124, 111.198.162.22/31, 111.198.162.24, 111.198.163.22/31, 111.198.163.24, 210.53.66.230/31, 123.138.59.136, 123.138.59.137
• Includes:
• DNS Lookups: 1
• Void Lookups: Passed
• Escaping Chars: Not Present
• All Mechanism: ~all

• DKIM Records Found: No

Warnings:

• No DKIM records found for common selectors

• Record: None
• Syntax: Invalid
• Policy: None
• RUA (Aggregate Reports):

DMARC External Validation:

• All external domains in your DMARC record are giving permission to send them DMARC reports.

Errors:

• DMARC record does not exist