Qip error dns lookup failed

qip error dns lookup failed

Explicit proxy requests fail after enabling always_query_destination Use the nslookup command to confirm that the server can resolve DNS lookups. perform dns lookups on both DNS servers - specifically for workstations that Problem is that QIP was setup by guys who are long gone. 10 DNS Errors That Will Kill Your Network · 1. TCP/IP Configuration Points to Public DNS Servers · 2. Improper DNS Suffix Handling · 3. Improperly. qip error dns lookup failed

Qip error dns lookup failed - rather good

DANE Fail Mandatory.
  • Once the DANE Support option has been completed, submit and commit changes.
  • Destination Control Profile - DANE Verify

    Verify DANE Success

    Delivery Status

    Monitor the WebUI "Delivery Status" Report for any unintended build-up of destination domains, potentially due to DANE Failure.

    Perform this prior to enabling the service, then periodically for several days to ensure continued success.

    ESA WebUI > Monitor > Delivery Status > check the "Active Recipients" column.

    Mail Logs

    Default Mail Logs at informational level for log level.

    The mail logs show very subtle indicators for DANE successfully negotiated messages.

    The final TLS negotiation outbound will include a slightly modified output to include the domain at the end of the log entry.

    The log entry will include "TLS success protocol" followed by TLS version/cipher "for domain.com".

    The magic is in the "for":

    myesa.local> grep "TLS success.*for" mail_logs

    Tue Feb  5 13:20:03 2019 Info: DCID 2322371 TLS success protocol TLSv1.2 cipher DHE-RSA-AES256-GCM-SHA384 for karakun.com

    Mail Logs debug

    Custom Mail Logs at Debug Level will display complete DANE and dnssec lookups, negotiation expected, portions of the check which pass/fail and a success indicator.

    Note: Mail logs configured for Debug Level logging may consume excessive resources on an ESA depending on the system load and configuration.

    Mail logs configured for Debug Level logging may consume excessive resources on an ESA depending on the system load and configuration.

    Mail logs are usually NOT maintained at Debug Level for extended periods of time.

    The Debug Level logs may generate a tremendous volume of mail logs in a short period of time.

    A frequent practice is to create an additional log subscription for mail_logs_d and set the logging for DEBUG.

    The action prevents impact to the existing mail_logs and allows manipulation to the volume of logs maintained for the subscription.

    To control the volume of logs created, restrict the number of files to maintain to a smaller number such as 2-4 files.

    When the monitoring, trial period or troubleshooting has completed, disable the log.

    Mail logs set for debug level show very detailed DANE output:

    Success sample daneverify
    daneverify ietf.org


    SECURE MX record(mail.ietf.org) found for ietf.org
    SECURE A record (4.31.198.44) found for MX(mail.ietf.org) in ietf.org
    Connecting to 4.31.198.44 on port 25.
    Connected to 4.31.198.44 from interface 194.191.40.74.
    SECURE TLSA record found for MX(mail.ietf.org) in ietf.org
    Checking TLS connection.
    TLS connection established: protocol TLSv1.2, cipher DHE-RSA-AES256-GCM-SHA384.
    Certificate verification successful
    TLS connection succeeded ietf.org.
    DANE SUCCESS for ietf.org
    DANE verification completed.


    debug level mail logs during the above 'daneverify' exeuction.
    Sample output from the execution of the daneverify ietf.org will populate the dns lookups within the mail logs
    Mon Feb 4 20:08:47 2019 Debug: DNS query: Q('ietf.org', 'MX')
    Mon Feb 4 20:08:47 2019 Debug: DNS query: QN('ietf.org', 'MX', 'recursive_nameserver0.parent')
    Mon Feb 4 20:08:47 2019 Debug: DNS query: QIP ('ietf.org','MX','194.191.40.84',60)
    Mon Feb 4 20:08:47 2019 Debug: DNS query: Q ('ietf.org', 'MX', '194.191.40.84')
    Mon Feb 4 20:08:48 2019 Debug: DNSSEC Response data([(0, 'mail.ietf.org.')], secure, 0, 1800)
    Mon Feb 4 20:08:48 2019 Debug: DNS encache (ietf.org, MX, [(8496573380345476L, 0, 'SECURE', (0, 'mail.ietf.org'))])
    Mon Feb 4 20:08:48 2019 Debug: DNS query: Q('mail.ietf.org', 'A')
    Mon Feb 4 20:08:48 2019 Debug: DNS query: QN('mail.ietf.org', 'A', 'recursive_nameserver0.parent')
    Mon Feb 4 20:08:48 2019 Debug: DNS query: QIP ('mail.ietf.org','A','194.191.40.84',60)
    Mon Feb 4 20:08:48 2019 Debug: DNS query: Q ('mail.ietf.org', 'A', '194.191.40.84')
    Mon Feb 4 20:08:48 2019 Debug: DNSSEC Response data(['4.31.198.44'], secure, 0, 1800)
    Mon Feb 4 20:08:48 2019 Debug: DNS encache (mail.ietf.org, A, [(8496573380345476L, 0, 'SECURE', '4.31.198.44')])
    Mon Feb 4 20:08:48 2019 Debug: DNS query: Q('mail.ietf.org', 'AAAA')
    Mon Feb 4 20:08:48 2019 Debug: DNS query: QN('mail.ietf.org', 'AAAA', 'recursive_nameserver0.parent')
    Mon Feb 4 20:08:48 2019 Debug: DNS query: QIP ('mail.ietf.org','AAAA','194.191.40.84',60)
    Mon Feb 4 20:08:48 2019 Debug: DNS query: Q ('mail.ietf.org', 'AAAA', '194.191.40.84')
    Mon Feb 4 20:08:48 2019 Warning: Received an invalid DNSSEC Response: DNSSEC_Error('mail.ietf.org', 'AAAA', '194.191.40.84', 'DNSSEC Error for hostname mail.ietf.org (AAAA) while asking 194.191.40.84. Error was: Unsupported qtype') of qtype AAAA looking up mail.ietf.org
    Mon Feb 4 20:08:48 2019 Debug: DNS query: Q('mail.ietf.org', 'CNAME')
    Mon Feb 4 20:08:48 2019 Debug: DNS query: QN('mail.ietf.org', 'CNAME', 'recursive_nameserver0.parent')
    Mon Feb 4 20:08:48 2019 Debug: DNS query: QIP ('mail.ietf.org','CNAME','194.191.40.83',60)
    Mon Feb 4 20:08:48 2019 Debug: DNS query: Q ('mail.ietf.org', 'CNAME', '194.191.40.83')
    Mon Feb 4 20:08:48 2019 Debug: DNSSEC Response data([], , 0, 1800)
    Mon Feb 4 20:08:48 2019 Debug: Received NODATA for domain mail.ietf.org type CNAME
    Mon Feb 4 20:08:48 2019 Debug: No CNAME record(NoError) found for domain(mail.ietf.org)

    Mon Feb 4 20:08:49 2019 Debug: DNS query: Q('_25._tcp.mail.ietf.org', 'TLSA')
    Mon Feb 4 20:08:49 2019 Debug: DNS query: QN('_25._tcp.mail.ietf.org', 'TLSA', 'recursive_nameserver0.parent')
    Mon Feb 4 20:08:49 2019 Debug: DNS query: QIP ('_25._tcp.mail.ietf.org','TLSA','194.191.40.83',60)
    Mon Feb 4 20:08:49 2019 Debug: DNS query: Q ('_25._tcp.mail.ietf.org', 'TLSA', '194.191.40.83')
    Mon Feb 4 20:08:49 2019 Debug: DNSSEC Response data(['0301010c72ac70b745ac19998811b131d662c9ac69dbdbe7cb23e5b514b56664c5d3d6'], secure, 0, 1800)
    Mon Feb 4 20:08:49 2019 Debug: DNS encache (_25._tcp.mail.ietf.org, TLSA, [(8496577312207991L, 0, 'SECURE', '0301010c72ac70b745ac19998811b131d662c9ac69dbdbe7cb23e5b514b56664c5d3d6')])fail sample daneverify

    []> thinkbeyond.ch

    INSECURE MX record(thinkbeyond-ch.mail.protection.outlook.com) found for thinkbeyond.ch
    INSECURE MX record(thinkbeyond-ch.mail.protection.outlook.com) found. The command will still proceed.
    INSECURE A record (104.47.9.36) found for MX(thinkbeyond-ch.mail.protection.outlook.com) in thinkbeyond.ch
    Trying next A record (104.47.10.36) for MX(thinkbeyond-ch.mail.protection.outlook.com) in thinkbeyond.ch
    INSECURE A record (104.47.10.36) found for MX(thinkbeyond-ch.mail.protection.outlook.com) in thinkbeyond.ch
    DANE FAILED for thinkbeyond.ch
    DANE verification completed.

    mail_logs
    Sample output from the execution of he danverify thinkbeyond.ch will populate the dns lookups within the mail logs
    Mon Feb 4 20:15:52 2019 Debug: DNS query: Q('thinkbeyond.ch', 'MX')
    Mon Feb 4 20:15:52 2019 Debug: DNS query: QN('thinkbeyond.ch', 'MX', 'recursive_nameserver0.parent')
    Mon Feb 4 20:15:52 2019 Debug: DNS query: QIP ('thinkbeyond.ch','MX','194.191.40.84',60)
    Mon Feb 4 20:15:52 2019 Debug: DNS query: Q ('thinkbeyond.ch', 'MX', '194.191.40.84')
    Mon Feb 4 20:15:52 2019 Debug: DNSSEC Response data([(10, 'thinkbeyond-ch.mail.protection.outlook.com.')], insecure, 0, 3600)
    Mon Feb 4 20:15:52 2019 Debug: DNS encache (thinkbeyond.ch, MX, [(8502120882844461L, 0, 'INSECURE', (10, 'thinkbeyond-ch.mail.protection.outlook.com'))])
    Mon Feb 4 20:15:52 2019 Debug: DNS query: Q('thinkbeyond-ch.mail.protection.outlook.com', 'A')
    Mon Feb 4 20:15:52 2019 Debug: DNS query: QN('thinkbeyond-ch.mail.protection.outlook.com', 'A', 'recursive_nameserver0.parent')
    Mon Feb 4 20:15:52 2019 Debug: DNS query: QIP ('thinkbeyond-ch.mail.protection.outlook.com','A','194.191.40.83',60)
    Mon Feb 4 20:15:52 2019 Debug: DNS query: Q ('thinkbeyond-ch.mail.protection.outlook.com', 'A', '194.191.40.83')
    Mon Feb 4 20:15:52 2019 Debug: DNSSEC Response data(['104.47.9.36', '104.47.10.36'], insecure, 0, 10)
    Mon Feb 4 20:15:52 2019 Debug: DNS encache (thinkbeyond-ch.mail.protection.outlook.com, A, [(8497631700844461L, 0, 'INSECURE', '104.47.9.36'), (8497631700844461L, 0, 'INSECURE', '104.47.10.36')])
    Mon Feb 4 20:15:52 2019 Debug: DNS query: Q('thinkbeyond-ch.mail.protection.outlook.com', 'AAAA')
    Mon Feb 4 20:15:52 2019 Debug: DNS query: QN('thinkbeyond-ch.mail.protection.outlook.com', 'AAAA', 'recursive_nameserver0.parent')
    Mon Feb 4 20:15:52 2019 Debug: DNS query: QIP ('thinkbeyond-ch.mail.protection.outlook.com','AAAA','194.191.40.84',60)
    Mon Feb 4 20:15:52 2019 Debug: DNS query: Q ('thinkbeyond-ch.mail.protection.outlook.com', 'AAAA', '194.191.40.84')
    Mon Feb 4 20:15:52 2019 Debug: DNSSEC Response data([], , 0, 32768)
    Mon Feb 4 20:15:52 2019 Debug: Received NODATA for domain thinkbeyond-ch.mail.protection.outlook.com type AAAA
    Mon Feb 4 20:15:52 2019 Debug: DNS query: Q('thinkbeyond-ch.mail.protection.outlook.com', 'CNAME')
    Mon Feb 4 20:15:52 2019 Debug: DNS query: QN('thinkbeyond-ch.mail.protection.outlook.com', 'CNAME', 'recursive_nameserver0.parent')
    Mon Feb 4 20:15:52 2019 Debug: DNS query: QIP ('thinkbeyond-ch.mail.protection.outlook.com','CNAME','194.191.40.83',60)
    Mon Feb 4 20:15:52 2019 Debug: DNS query: Q ('thinkbeyond-ch.mail.protection.outlook.com', 'CNAME', '194.191.40.83')
    Mon Feb 4 20:15:53 2019 Warning: Received an invalid DNS Response: SERVER FAILED to IP 194.191.40.83 looking up thinkbeyond-ch.mail.protection.outlook.com
    Mon Feb 4 20:15:53 2019 Debug: DNS query: QIP ('thinkbeyond-ch.mail.protection.outlook.com','CNAME','194.191.40.84',60)
    Mon Feb 4 20:15:53 2019 Debug: DNS query: Q ('thinkbeyond-ch.mail.protection.outlook.com', 'CNAME', '194.191.40.84')
    Mon Feb 4 20:15:54 2019 Warning: Received an invalid DNS Response: SERVER FAILED to IP 194.191.40.84 looking up thinkbeyond-ch.mail.protection.outlook.com
    Mon Feb 4 20:15:54 2019 Debug: No CNAME record() found for domain(thinkbeyond-ch.mail.protection.outlook.com)

    Related Information