DNS Report for sport.cz

• ans.seznam.cz

  • IPv4: 77.75.74.80
  • IPv6: 2a02:598:3333::3
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

• ams.seznam.cz

  • IPv4: 77.75.75.230
  • IPv6: 2a02:598:4444::4
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

Nameserver Count - OK

• ans.seznam.cz

  • Status: Responded
  • IP(s): 77.75.76.4, 77.75.78.4
  • TTL: 60 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• ams.seznam.cz

  • Status: Responded
  • IP(s): 77.75.76.4, 77.75.78.4
  • TTL: 60 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

ans.seznam.cz

• Serial: 1724911409
• Refresh: 900
• Retry: 300
• Expire: 604800
• Minimum TTL: 300

ams.seznam.cz

• Serial: 1724911409
• Refresh: 900
• Retry: 300
• Expire: 604800
• Minimum TTL: 300

Serial: 1724911409 - OK

REFRESH: 900 - OK

RETRY: 300 - OK

EXPIRE: 604800 - OK

MINIMUM TTL: 300 - Note: Outside recommended range (1-3 hours)

ans.seznam.cz

• 10 sport-cz.mail.protection.outlook.com ( 52.101.73.4 )

ams.seznam.cz

• 10 sport-cz.mail.protection.outlook.com ( 52.101.68.36 )

MX Record Consistency - Warning: Inconsistencies found

MX Record Count - Warning: Only one MX record

• 4.73.101.52.in-addr.arpa -> mail-am0pr83cu00404.inbound.protection.outlook.com
• 36.68.101.52.in-addr.arpa -> mail-db5pr02cu00104.inbound.protection.outlook.com

PTR Records - OK

• Signed: Yes
• Validation: Successful
• DNSKEY Records: 2
• DS Records in parent zone: 0
• DS at Parent: None

DNSSEC - OK

SPF Record Published: Passed

Multiple SPF Records: Passed

SPF Record 1:

• Record: v=spf1 include:spf.mailkit.eu include:spf.protection.outlook.com -all
• SPF Syntax: Passed
• Deprecated Elements: Passed
• IP Addresses:
• Includes: spf.mailkit.eu, spf.protection.outlook.com
• DNS Lookups: 4
• 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:

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