DNS Report for opendns.com

• auth1.opendns.com

  • IPv4: 208.69.39.2
  • IPv6: 2620:119:30::53
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

• auth2.opendns.com

  • IPv4: 146.112.60.53
  • IPv6: 2a04:e4c0:53::53
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

• auth3.opendns.com

  • IPv4: 208.69.39.2
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

Nameserver Count - OK

• auth1.opendns.com

  • Status: Responded
  • IP(s): 146.112.62.105
  • TTL: 300 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed:

• auth2.opendns.com

  • Status: Responded
  • IP(s): 146.112.62.105
  • TTL: 300 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed:

• auth3.opendns.com

  • Status: Responded
  • IP(s): 146.112.62.105
  • TTL: 300 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed:

auth1.opendns.com

• Serial: 1722127781
• Refresh: 16384
• Retry: 2048
• Expire: 1048576
• Minimum TTL: 2560

auth2.opendns.com

• Serial: 1722127781
• Refresh: 16384
• Retry: 2048
• Expire: 1048576
• Minimum TTL: 2560

auth3.opendns.com

• Serial: 1722127781
• Refresh: 16384
• Retry: 2048
• Expire: 1048576
• Minimum TTL: 2560

Serial: 1722127781 - OK

REFRESH: 16384 - OK

RETRY: 2048 - OK

EXPIRE: 1048576 - OK

MINIMUM TTL: 2560 - Note: Outside recommended range (1-3 hours)

auth1.opendns.com

• 10 alln-mx-01.cisco.com ( 173.37.147.230 )
• 20 rcdn-mx-01.cisco.com ( 72.163.7.166 )
• 30 aer-mx-01.cisco.com ( 173.38.212.150 )

auth2.opendns.com

• 10 alln-mx-01.cisco.com ( 173.37.147.230 )
• 20 rcdn-mx-01.cisco.com ( 72.163.7.166 )
• 30 aer-mx-01.cisco.com ( 173.38.212.150 )

auth3.opendns.com

• 10 alln-mx-01.cisco.com ( 173.37.147.230 )
• 20 rcdn-mx-01.cisco.com ( 72.163.7.166 )
• 30 aer-mx-01.cisco.com ( 173.38.212.150 )

MX Record Consistency - OK

MX Record Count - OK

• 230.147.37.173.in-addr.arpa -> alln-mx-01.cisco.com
• 166.7.163.72.in-addr.arpa -> rcdn-mx-01.cisco.com
• 150.212.38.173.in-addr.arpa -> aer-mx-01.cisco.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 ptr include:_nets.opendns.com include:mail.zendesk.com include:amazonses.com include:_netblocks.google.com include:_netblocks2.google.com include:_netblocks3.google.com include:spf1.mailgun.org include:spf2.mailgun.org ip4:173.37.147.246 ip4:173.37
• SPF Syntax: Failed
• Deprecated Elements: Failed
• IP Addresses: 173.37.147.246, 173.37
• Includes: _nets.opendns.com, mail.zendesk.com, amazonses.com, _netblocks.google.com, _netblocks2.google.com, _netblocks3.google.com, spf1.mailgun.org, spf2.mailgun.org
• DNS Lookups: 13 (Warning: Exceeds limit)
• Void Lookups: Failed
• Escaping Chars: Not Present
• All Mechanism: Not Present

Warnings:

• SPF record contains deprecated elements
• SPF record contains void lookups (ptr)
• SPF record doesn't contain an 'all' mechanism
• SPF record has more than 10 DNS lookups, which may cause lookup limits

Errors:

• SPF record syntax is invalid

• DKIM Records Found: Yes
• Selectors Found: default
• Selector 'default':
  Record: v=DKIM1; g=*; k=rsa; t=y; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDAxikYXhtduO+OogelTtbK2GinpyZpEiT8+4dn6oz1YrVr/HWu0Yk3cJPntHDgLHGXloCcViZgCVRnRmlMkz5YEq55Vk6DeuVx3Mu5K3wfF0Xg2wrtuE22ZAGk4XSC0j+PvUhWmXear4jMkV/iLJz6cT4iFATvysMzeLgcwGxFZwIDAQAB
• Valid Syntax: Yes

• 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