DNS Report for optimum.net

• authns1.cvnet.com

  • IPv4: 167.206.13.20
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• authns1.cv.net

  • IPv4: 167.206.12.12
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

Nameserver Count - OK

• authns1.cvnet.com

  • Status: Responded
  • IP(s): 167.206.237.230
  • TTL: 300 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• authns1.cv.net

  • Status: Responded
  • IP(s): 167.206.237.230
  • TTL: 300 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

authns1.cvnet.com

• Serial: 2013109898
• Refresh: 7200
• Retry: 600
• Expire: 604800
• Minimum TTL: 86400

authns1.cv.net

• Serial: 2013109898
• Refresh: 7200
• Retry: 600
• Expire: 604800
• Minimum TTL: 86400

Serial: 2013109898 - OK

REFRESH: 7200 - OK

RETRY: 600 - OK

EXPIRE: 604800 - OK

MINIMUM TTL: 86400 - Note: Outside recommended range (1-3 hours)

authns1.cvnet.com

• 10 mx.altice.prod.cloud.openwave.ai ( 65.20.63.100 )

authns1.cv.net

• 10 mx.altice.prod.cloud.openwave.ai ( 65.20.63.100 )

MX Record Consistency - OK

MX Record Count - Warning: Only one MX record

• 100.63.20.65.in-addr.arpa -> No PTR record found: The DNS query name does not exist: 100.63.20.65.in-addr.arpa.

PTR Records - OK

• Signed: Yes
• Validation: Successful
• DNSKEY Records: 2
• DS Records in parent zone: 0
• DS at Parent: False

DNSSEC - OK

SPF Record Published: Passed

Multiple SPF Records: Passed

SPF Record 1:

• Record: v=spf1 ip4:167.206.4.192/27 ip4:65.20.63.0/24 ip4:65.20.48.0/24 ~all
• SPF Syntax: Passed
• Deprecated Elements: Passed
• IP Addresses: 167.206.4.192/27, 65.20.63.0/24, 65.20.48.0/24
• 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: v=DMARC1;p=none
• Syntax: Valid
• Policy: none
• RUA (Aggregate Reports):

DMARC External Validation:

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