DNS Report for mit.edu

• eur5.akam.net

  • IPv4: 23.74.25.64
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• ns1-173.akam.net

  • IPv4: 193.108.91.173
  • IPv6: 2600:1401:2::ad
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

• ns1-37.akam.net

  • IPv4: 193.108.91.37
  • IPv6: 2600:1401:2::25
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

• use5.akam.net

  • IPv4: 2.16.40.64
  • IPv6: 2600:1403:a::40
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): 30 seconds
  • Recursive: N/A

• use2.akam.net

  • IPv4: 96.7.49.64
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• asia2.akam.net

  • IPv4: 95.101.36.64
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• asia1.akam.net

  • IPv4: 95.100.175.64
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

• usw2.akam.net

  • IPv4: 184.26.161.64
  • IPv6: No IPv6 found
  • TTL (IPv4): 30 seconds
  • TTL (IPv6): N/A seconds
  • Recursive: N/A

Nameserver Count - Note: 8 nameservers (recommended: 2-7)

• eur5.akam.net

  • Status: Responded
  • IP(s): 23.194.149.40
  • TTL: 20 seconds
  • Recursive Queries: Unclear (Response code: NXDOMAIN)
  • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)

• ns1-173.akam.net

  • Status: Responded
  • IP(s): 23.210.114.10
  • TTL: 20 seconds
  • Recursive Queries: Unclear (Response code: NXDOMAIN)
  • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)

• ns1-37.akam.net

  • Status: Responded
  • IP(s): 23.210.114.10
  • TTL: 20 seconds
  • Recursive Queries: Unclear (Response code: NXDOMAIN)
  • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)

• use5.akam.net

  • Status: Responded
  • IP(s): 23.210.114.10
  • TTL: 20 seconds
  • Recursive Queries: Unclear (Response code: NXDOMAIN)
  • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)

• use2.akam.net

  • Status: Responded
  • IP(s): 23.214.226.27
  • TTL: 20 seconds
  • Recursive Queries: Unclear (Response code: NXDOMAIN)
  • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)

• asia2.akam.net

  • Status: Responded
  • IP(s): 104.102.9.251
  • TTL: 20 seconds
  • Recursive Queries: Unclear (Response code: NXDOMAIN)
  • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)

• asia1.akam.net

  • Status: Responded
  • IP(s): 104.80.242.135
  • TTL: 20 seconds
  • Recursive Queries: Unclear (Response code: NXDOMAIN)
  • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)

• usw2.akam.net

  • Status: Responded
  • IP(s): 95.100.239.225
  • TTL: 20 seconds
  • Recursive Queries: Unclear (Response code: NXDOMAIN)
  • TCP Connectivity: TCP connection failed (Response code: NXDOMAIN)

eur5.akam.net

• Serial: 19828
• Refresh: 900
• Retry: 900
• Expire: 3600000
• Minimum TTL: 3600

ns1-173.akam.net

• Serial: 19828
• Refresh: 900
• Retry: 900
• Expire: 3600000
• Minimum TTL: 3600

ns1-37.akam.net

• Serial: 19828
• Refresh: 900
• Retry: 900
• Expire: 3600000
• Minimum TTL: 3600

use5.akam.net

• Serial: 19828
• Refresh: 900
• Retry: 900
• Expire: 3600000
• Minimum TTL: 3600

use2.akam.net

• Serial: 19828
• Refresh: 900
• Retry: 900
• Expire: 3600000
• Minimum TTL: 3600

asia2.akam.net

• Serial: 19828
• Refresh: 900
• Retry: 900
• Expire: 3600000
• Minimum TTL: 3600

asia1.akam.net

• Serial: 19828
• Refresh: 900
• Retry: 900
• Expire: 3600000
• Minimum TTL: 3600

usw2.akam.net

• Serial: 19828
• Refresh: 900
• Retry: 900
• Expire: 3600000
• Minimum TTL: 3600

Serial: 19828 - OK

REFRESH: 900 - OK

RETRY: 900 - OK

EXPIRE: 3600000 - OK

MINIMUM TTL: 3600 - OK

eur5.akam.net

• 100 mit-edu.mail.protection.outlook.com ( 52.101.8.51 )

ns1-173.akam.net

• 100 mit-edu.mail.protection.outlook.com ( 52.101.194.19 )

ns1-37.akam.net

• 100 mit-edu.mail.protection.outlook.com ( 52.101.8.51 )

use5.akam.net

• 100 mit-edu.mail.protection.outlook.com ( 52.101.10.5 )

use2.akam.net

• 100 mit-edu.mail.protection.outlook.com ( 52.101.194.13 )

asia2.akam.net

• 100 mit-edu.mail.protection.outlook.com ( 52.101.10.6 )

asia1.akam.net

• 100 mit-edu.mail.protection.outlook.com ( 52.101.194.13 )

usw2.akam.net

• 100 mit-edu.mail.protection.outlook.com ( 52.101.194.13 )

MX Record Consistency - Warning: Inconsistencies found

MX Record Count - Warning: Only one MX record

• 51.8.101.52.in-addr.arpa -> mail-dm1pr04cu00203.inbound.protection.outlook.com
• 5.10.101.52.in-addr.arpa -> mail-bn6pr04cu00105.inbound.protection.outlook.com
• 6.10.101.52.in-addr.arpa -> mail-bn1pr21cu00106.inbound.protection.outlook.com
• 19.194.101.52.in-addr.arpa -> mail-ch5pr02cu00303.inbound.protection.outlook.com
• 13.194.101.52.in-addr.arpa -> mail-ch0pr04cu00605.inbound.protection.outlook.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 include:_s00430413.autospf.email -all
• SPF Syntax: Passed
• Deprecated Elements: Passed
• IP Addresses:
• Includes: _s00430413.autospf.email
• DNS Lookups: 4
• Void Lookups: Passed
• Escaping Chars: Not Present
• All Mechanism: -all

• DKIM Records Found: Yes
• Selectors Found: google
• Selector 'google':
  Record: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAiSbLt0suIW25ugxKvznkfDnggtLob3rBIDWzkEWx0YltgW3QCABLT
• Valid Syntax: Yes

• Record: v=DMARC1; p=none; rua=mailto:dmarcreports@mit.edu
• Syntax: Valid
• Policy: none
• RUA (Aggregate Reports): mailto:dmarcreports@mit.edu

DMARC External Validation:

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