DNS Report for seznamzpravy.cz

• ams.seznam.cz

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

• ans.seznam.cz

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

Nameserver Count - OK

• ams.seznam.cz

  • Status: Responded
  • IP(s): 185.66.189.31, 77.75.78.215
  • TTL: 60 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• ans.seznam.cz

  • Status: Responded
  • IP(s): 185.66.189.31, 77.75.78.215
  • TTL: 60 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

ams.seznam.cz

• Serial: 1724911408
• Refresh: 900
• Retry: 300
• Expire: 604800
• Minimum TTL: 300

ans.seznam.cz

• Serial: 1724911408
• Refresh: 900
• Retry: 300
• Expire: 604800
• Minimum TTL: 300

Serial: 1724911408 - OK

REFRESH: 900 - OK

RETRY: 300 - OK

EXPIRE: 604800 - OK

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

ams.seznam.cz

• 10 dcf53e4ed29c2220.mx1.emailprofi.seznam.cz ( 77.75.77.56 )
• 20 dcf53e4ed29c2220.mx2.emailprofi.seznam.cz ( 77.75.77.146 )

ans.seznam.cz

• 10 dcf53e4ed29c2220.mx1.emailprofi.seznam.cz ( 77.75.77.56 )
• 20 dcf53e4ed29c2220.mx2.emailprofi.seznam.cz ( 77.75.77.146 )

MX Record Consistency - OK

MX Record Count - OK

• 146.77.75.77.in-addr.arpa -> wildcard.mx2.emailprofi.seznam.cz
• 56.77.75.77.in-addr.arpa -> wildcard.mx1.emailprofi.seznam.cz

PTR Records - OK

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

DNSSEC - Warning: Validation failed

Issue: No DS record found at the parent zone.

Action: Please add the DS record to both your DNS server and domain registrar.

Error: Error checking DNSSEC: Your connection limit exceeded. Please slow down and try again later.

SPF Record Published: Passed

Multiple SPF Records: Passed

SPF Record 1:

• Record: v=spf1 include:spf.szn.cz ~all
• SPF Syntax: Passed
• Deprecated Elements: Passed
• IP Addresses:
• Includes: spf.szn.cz
• DNS Lookups: 2
• 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=quarantine; rua=mailto:[email protected],mailto:[email protected];
• Syntax: Valid
• Policy: quarantine
• RUA (Aggregate Reports): mailto:[email protected], mailto:[email protected]

DMARC External Validation:

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