[ Note ]

• When editing NS records registered in a zone of "IIJ Managed DNS Service" to support sender domain authentication, make sure to disable the DNSSEC setting in advance. (After a disabling operation has been made, make sure to wait until the status of DNSSEC changes to "Disabled.")
  • When the NS records to be edited are NS records for the DKIM signature setting of the "IIJ Secure MX Service," see "Q. When deleting an NS record for the IIJ Secure MX Service and registering a CNAME record required to set a DKIM signature for the service, do I need to disable the DNSSEC setting for the target zone in advance?"
    
• If you change NS records before the DNSSEC setting is disabled, you may have problems with name resolution.
• It takes several days to enable or disable the DNSSEC setting. Leave time in the schedule for enabling or disabling the DNSSEC setting. Refer to "DNSSEC Management" for more information.

[ Note ]

The settings shown below are examples when performing registration with TXT or CNAME records.
If you perform registration using records other than TXT and CNAME records, register records in accordance with the requirements specified by the administrator of the sender email server.

Note that the data input to the "Register Record to be Added" screen is a setting example. Be careful not to configure the settings using the same data in the setting example.

[ Note ]When registering records, pay attention to the following points.

• Assign a dot (.) to the end of the domain name to be described in Name.
• When using the default value for TTL, check the "Default TTL" box. To set any other value, uncheck the "Default TTL" box and enter a desired value.
• For information on the content to be described in Value, contact the administrator of your sender email server or refer to the information in the related documents and on the related websites.
  
  • The authentication method may change depending on the parameter value.
  • Described contents are not supported by this service.

  • If you are using the "IIJ Secure MX Service," see "Usage Method of Each Functions > Using Email Authentication > Using Outbound SPF" in the "Basic Functions Manual" from Manuals/Downloads of "IIJ Secure MX Service."

• Registration of records other than TXT records may be required depending on the specification of the sender email server. For more information, contact the administrator of the sender email server.

[ Note ]When registering records, pay attention to the following points.

• Assign a dot (.) to the end of the domain name to be described in Name.
• When using the default value for TTL, check the "Default TTL" box. To set any other value, uncheck the "Default TTL" box and enter a desired value.
• Describe Value in a single line. If described in two or more lines, SPF will not operate normally.
• To describe multiple values in Value, separate each value with a single-byte space.
• For information on the content to be described in Value, contact the administrator of your sender email server or refer to the information in the related documents and on the related websites.
• An SPF record should be no more than about 450 bytes (characters) due to the RFC.
• The authentication method may change depending on the parameter value.
• Described contents are not supported by this service.
• If you are using the "IIJ Secure MX Service," see "Usage Method of Each Functions > Using Email Authentication > Using Outbound SPF" in the "Basic Functions Manual" from Manuals/Downloads of "IIJ Secure MX Service."
• Registration of records other than TXT records may be required depending on the specification of the sender email server. For more information, contact the administrator of the sender email server.

[ Note ]When registering records, pay attention to the following points.

• Assign a dot (.) to the end of the domain name to be described in Name.
• When using the default value for TTL, check the "Default TTL" box. To set any other value, uncheck the "Default TTL" box and enter a desired value.
• For information on the content to be described in Value, contact the administrator of your sender email server or refer to the information in the related documents and on the related websites.
  • The authentication method may change depending on the parameter value.
  • Described contents are not supported by this service.
  • If you are using the "IIJ Secure MX Service," see "Usage Method of Each Functions > Using Email Authentication > Using Outbound DKIM" in the "Basic Functions Manual" from Manuals/Downloads of "IIJ Secure MX Service."
• Registration of records other than TXT or CNAME records may be required depending on the specification of the sender email server. For more information, contact the administrator of the sender email server.

[ Note ]

• Assign a dot (.) to the end of the domain name to be described in Name and Values.
• When using the default value for TTL, check the "Default TTL" box. To set any other value, uncheck the "Default TTL" box and enter a desired value.
• For information on the content to be described in Value, contact the administrator of your sender email server or refer to the information in the related documents and on the related websites.
  • The authentication method may change depending on the parameter value.
  • Described contents are not supported by this service.

  • If you are using the "IIJ Secure MX Service," see "Usage Method of Each Functions > Using Email Authentication > Using Outbound DKIM" in the "Basic Functions Manual" from Manuals/Downloads of "IIJ Secure MX Service."

• Registration of records other than TXT or CNAME records may be required depending on the specification of the sender email server. For more information, contact the administrator of the sender email server.

[ Note ]When registering records, pay attention to the following points.

• Assign a dot (.) to the end of the domain name to be described in Name.
• When using the default value for TTL, check the "Default TTL" box. To set any other value, uncheck the "Default TTL" box and enter a desired value.
• For information on the content to be described in Value, contact the administrator of your sender email server or refer to the information in the related documents and on the related websites.
  
  • The authentication method may change depending on the parameter value.
  • Described contents are not supported by this service.

  • If you are using the "IIJ Secure MX Service," see "Usage Method of Each Functions > Using Email Authentication > Using Outbound DMARC" in the "Basic Functions Manual" from https://help.iij.ad.jp/admin/service/manual/mx/index.cfm?serviceIdList=IIJ.MX of "IIJ Secure MX Service."

• Registration of records other than TXT records may be required depending on the specification of the sender email server. For more information, contact the administrator of the sender email server.