DNS Report for 550909.com

• ns03.idcfcloud.com

  • IPv4: 202.230.203.7
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• ns01.idcfcloud.com

  • IPv4: 210.140.183.89
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• ns02.idcfcloud.com

  • IPv4: 211.10.28.207
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

Nameserver Count - OK

• ns03.idcfcloud.com

  • Status: Responded
  • IP(s): 211.13.206.138
  • TTL: 3600 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• ns01.idcfcloud.com

  • Status: Responded
  • IP(s): 211.13.206.138
  • TTL: 3600 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• ns02.idcfcloud.com

  • Status: Responded
  • IP(s): 211.13.206.138
  • TTL: 3600 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

ns03.idcfcloud.com

• Serial: 260
• Refresh: 10800
• Retry: 3600
• Expire: 604800
• Minimum TTL: 3600

ns01.idcfcloud.com

• Serial: 260
• Refresh: 10800
• Retry: 3600
• Expire: 604800
• Minimum TTL: 3600

ns02.idcfcloud.com

• Serial: 260
• Refresh: 10800
• Retry: 3600
• Expire: 604800
• Minimum TTL: 3600

Serial: 260 - OK

REFRESH: 10800 - OK

RETRY: 3600 - OK

EXPIRE: 604800 - OK

MINIMUM TTL: 3600 - OK

ns03.idcfcloud.com

• 20 mail.550909.com ( 13.115.9.124 )

ns01.idcfcloud.com

• 20 mail.550909.com ( 43.207.21.210 )

ns02.idcfcloud.com

• 20 mail.550909.com ( 43.207.21.210 )

MX Record Consistency - Warning: Inconsistencies found

MX Record Count - Warning: Only one MX record

• 210.21.207.43.in-addr.arpa -> ec2-43-207-21-210.ap-northeast-1.compute.amazonaws.com
• 124.9.115.13.in-addr.arpa -> ec2-13-115-9-124.ap-northeast-1.compute.amazonaws.com

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 ip4:211.13.206.128/26 include:t20.ko-sokumail.net ip4:125.6.180.73 ~all
• SPF Syntax: Passed
• Deprecated Elements: Passed
• IP Addresses: 211.13.206.128/26, 125.6.180.73
• Includes: t20.ko-sokumail.net
• DNS Lookups: 3
• Void Lookups: Passed
• Escaping Chars: Not Present
• All Mechanism: ~all

• DKIM Records Found: No

Warnings:

• No DKIM records found for common selectors

• Record: v=DMARC1; p=none; rua=mailto:[email protected]
• Syntax: Valid
• Policy: none
• RUA (Aggregate Reports): mailto:[email protected]

DMARC External Validation:

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