Which of the following features would you not use to manage email communications frequency?

The aspect of survey design options is not involved in managing email communication frequency. This feature primarily pertains to how the surveys themselves are structured, including question types, layout, and overall design rather than the frequency of emails sent to participants or recipients.

Managing the frequency of email communications is typically handled through specific tools and settings that directly impact how often and under what conditions contacts receive communications. For instance, contact frequency rules are explicitly designed to set limitations or guidelines on how often contacts can be contacted. Recipient management settings also play a crucial role in controlling this aspect by filtering or segmenting contacts based on different criteria. Communication tracking tools assist in monitoring and analyzing email engagement, but they do not dictate the frequency of emails sent.

Since survey design options are focused on the content and presentation of surveys themselves and do not govern the process of emailing or timing, they are correctly identified as the feature not used for managing email communication frequency.