DNS Report for messagelabs.com

• ns-1296.awsdns-34.org

  • IPv4: 205.251.197.16
  • IPv6: 2600:9000:5305:1000::1
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

• ns-1714.awsdns-22.co.uk

  • IPv4: 205.251.198.178
  • IPv6: 2600:9000:5306:b200::1
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

• ns-453.awsdns-56.com

  • IPv4: 205.251.193.197
  • IPv6: 2600:9000:5301:c500::1
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

• ns-520.awsdns-01.net

  • IPv4: 205.251.194.8
  • IPv6: 2600:9000:5302:800::1
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

Nameserver Count - OK

• ns-1296.awsdns-34.org

  • Status: Responded
  • IP(s): 52.13.171.212, 50.112.202.115, 54.68.22.26
  • TTL: 86400 seconds
  • Recursive Queries: Unclear (Response code: NXDOMAIN)
  • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)

• ns-1714.awsdns-22.co.uk

  • Status: Responded
  • IP(s): 54.68.22.26, 52.13.171.212, 50.112.202.115
  • TTL: 86400 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• ns-453.awsdns-56.com

  • Status: Responded
  • IP(s): 50.112.202.115, 54.68.22.26, 52.13.171.212
  • TTL: 86400 seconds
  • Recursive Queries: Unclear (Response code: NXDOMAIN)
  • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)

• ns-520.awsdns-01.net

  • Status: Responded
  • IP(s): 52.13.171.212, 54.68.22.26, 50.112.202.115
  • TTL: 86400 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

ns-1296.awsdns-34.org

• Serial: 1
• Refresh: 7200
• Retry: 900
• Expire: 1209600
• Minimum TTL: 86400

ns-1714.awsdns-22.co.uk

• Serial: 1
• Refresh: 7200
• Retry: 900
• Expire: 1209600
• Minimum TTL: 86400

ns-453.awsdns-56.com

• Serial: 1
• Refresh: 7200
• Retry: 900
• Expire: 1209600
• Minimum TTL: 86400

ns-520.awsdns-01.net

• Serial: 1
• Refresh: 7200
• Retry: 900
• Expire: 1209600
• Minimum TTL: 86400

Serial: 1 - OK

REFRESH: 7200 - OK

RETRY: 900 - OK

EXPIRE: 1209600 - OK

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

ns-1296.awsdns-34.org

• 10 cluster6.eu.messagelabs.com ( 195.245.231.75 )
• 20 cluster6a.eu.messagelabs.com ( 195.245.231.69 )

ns-1714.awsdns-22.co.uk

• 10 cluster6.eu.messagelabs.com ( 195.245.231.69 )
• 20 cluster6a.eu.messagelabs.com ( 195.245.230.202 )

ns-453.awsdns-56.com

• 10 cluster6.eu.messagelabs.com ( 195.245.231.69 )
• 20 cluster6a.eu.messagelabs.com ( 195.245.230.201 )

ns-520.awsdns-01.net

• 10 cluster6.eu.messagelabs.com ( 195.245.231.75 )
• 20 cluster6a.eu.messagelabs.com ( 195.245.230.202 )

MX Record Consistency - Warning: Inconsistencies found

MX Record Count - OK

• 75.231.245.195.in-addr.arpa -> mail571.messagelabs.com
• 202.230.245.195.in-addr.arpa -> mail591.messagelabs.com
• 69.231.245.195.in-addr.arpa -> mail548.messagelabs.com
• 201.230.245.195.in-addr.arpa -> mail587.messagelabs.com
• 69.231.245.195.in-addr.arpa -> mail548.messagelabs.com

PTR Records - OK

• Signed: Yes
• Validation: Successful
• DNSKEY Records: 3
• 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 include:spf.messagelabs.com ip4:35.242.169.159 ip4:35.205.92.9 ~all
• SPF Syntax: Passed
• Deprecated Elements: Passed
• IP Addresses: 35.242.169.159, 35.205.92.9
• Includes: spf.messagelabs.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: vali.email
• All external domains in your DMARC record are giving permission to send them DMARC reports.