Adaptive message retention time based on user interaction

A computer system comprising:

• one or more computer processors;
• one or more computer readable storage media;
• and
• program instructions stored on the one or more computer readable storage media for execution by at least one of the one or more computer processors, the program instructions comprising:
• program instructions to dynamically adjust individual message retention times in a messaging system, wherein the program instructions to dynamically adjust individual message retention times comprise:
• program instructions to receive a plurality of messages;
• program instructions to store the plurality of messages in a storage;
• program instructions to determine continuously interactions with messages stored by the messaging system;
• program instructions to determine dynamically a retention score value for selected messages based on a sum of weighted interactions type count values of the determined interactions, and
• program instructions to delete messages for which the retention score value is below a predetermined retention threshold value.

A computer program product comprising:

• one or more computer readable storage media and program instructions stored on the one or more computer readable storage media, the program instructions comprising:
• program instructions to dynamically adjust individual message retention times in a messaging system, wherein the program instructions to dynamically adjust individual message retention times comprise:
• program instructions to receive a plurality of messages;
• program instructions to store the plurality of messages in a storage;
• program instructions to determine continuously interactions with messages stored by the messaging system;
• program instructions to determine dynamically a retention score value for selected messages based on a sum of weighted interactions type count values of the determined interactions, and
• program instructions to delete messages for which the retention score value is below a predetermined retention threshold value.