DNS Report for cuny.edu

• ns10.customer.level3.net

  • IPv4: 209.244.4.149
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• lavinia.cis.cuny.edu

  • IPv4: 128.228.5.64
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• acme.ucc.cuny.edu

  • IPv4: 128.228.1.10
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• ns15.customer.level3.net

  • IPv4: 209.244.4.244
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• ext-ns1.columbia.edu

  • IPv4: 128.59.1.1
  • IPv6: 2001:18d8:1::1:1, 2001:18d8::35
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

Nameserver Count - OK

• ns10.customer.level3.net

  • Status: Responded
  • IP(s): 128.228.254.200
  • TTL: 600 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• lavinia.cis.cuny.edu

  • Status: Responded
  • IP(s): 128.228.254.200
  • TTL: 600 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• acme.ucc.cuny.edu

  • Status: Responded
  • IP(s): 128.228.254.200
  • TTL: 600 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• ns15.customer.level3.net

  • Status: Responded
  • IP(s): 128.228.254.200
  • TTL: 600 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

• ext-ns1.columbia.edu

  • Status: Responded
  • IP(s): 128.228.254.200
  • TTL: 600 seconds
  • Recursive Queries: Does not allow recursive queries
  • TCP Connectivity: TCP connection failed (Response code: REFUSED)

ns10.customer.level3.net

• Serial: 2019022295
• Refresh: 3600
• Retry: 1800
• Expire: 2419200
• Minimum TTL: 3600

lavinia.cis.cuny.edu

• Serial: 2019022295
• Refresh: 3600
• Retry: 1800
• Expire: 2419200
• Minimum TTL: 3600

acme.ucc.cuny.edu

• Serial: 2019022295
• Refresh: 3600
• Retry: 1800
• Expire: 2419200
• Minimum TTL: 3600

ns15.customer.level3.net

• Serial: 2019022295
• Refresh: 3600
• Retry: 1800
• Expire: 2419200
• Minimum TTL: 3600

ext-ns1.columbia.edu

• Serial: 2019022295
• Refresh: 3600
• Retry: 1800
• Expire: 2419200
• Minimum TTL: 3600

Serial: 2019022295 - OK

REFRESH: 3600 - OK

RETRY: 1800 - OK

EXPIRE: 2419200 - OK

MINIMUM TTL: 3600 - OK

ns10.customer.level3.net

• 10 mail-relay.cuny.edu ( 128.228.0.173 )

lavinia.cis.cuny.edu

• 10 mail-relay.cuny.edu ( 128.228.254.26 )

acme.ucc.cuny.edu

• 10 mail-relay.cuny.edu ( 128.228.0.173 )

ns15.customer.level3.net

• 10 mail-relay.cuny.edu ( 128.228.0.170 )

ext-ns1.columbia.edu

• 10 mail-relay.cuny.edu ( 128.228.0.167 )

MX Record Consistency - Warning: Inconsistencies found

MX Record Count - Warning: Only one MX record

• 170.0.228.128.in-addr.arpa -> ppa4.cuny.edu
• 173.0.228.128.in-addr.arpa -> mail-relay.cuny.edu
• 167.0.228.128.in-addr.arpa -> smtp-relay.cuny.edu
• 26.254.228.128.in-addr.arpa -> smtp-relay.cuny.edu

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 ip4:199.188.157.80 ip4:172.173.209.94 ip4:13.82.46.95 ip4:172.173.209.94 ip4:13.82.46.95 ip4:208.75.120.0/22 ip4:205.207.104.0/22 ip4:64.74.237.230/31 ip4:216.147.212.20/30 include:spf.protection.outlook.com
• SPF Syntax: Passed
• Deprecated Elements: Passed
• IP Addresses: 199.188.157.80, 172.173.209.94, 13.82.46.95, 172.173.209.94, 13.82.46.95, 208.75.120.0/22, 205.207.104.0/22, 64.74.237.230/31, 216.147.212.20/30
• Includes: spf.protection.outlook.com
• DNS Lookups: 1
• Void Lookups: Passed
• Escaping Chars: Not Present
• All Mechanism: Not Present

Warnings:

• SPF record doesn't contain an 'all' mechanism

• DKIM Records Found: No

Warnings:

• No DKIM records found for common selectors

• Record: v=DMARC1;p=none;rua=mailto:[email protected],mailto:[email protected];ruf=mailto:[email protected],mailto:[email protected];fo=1;sp=none
• Syntax: Valid
• Policy: none
• Subdomain Policy: none
• RUA (Aggregate Reports): mailto:[email protected], mailto:[email protected]
• RUF (Forensic Reports): mailto:[email protected], mailto:[email protected]
• Failure Options (fo): 1

DMARC External Validation:

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