Answer:
unsolicited message
Step-by-step explanation:
By definition, an unsolicited message is one that the receiver has not requested and is not expecting to receive.
Unsolicited job applications are done when no open position is available in a company but an individual wants to work for the company and sends his/her personal information (resume + cover letter) in order to be considered by the company in the future when an open position is available.
Companies are not required to keep records of unsolicited applications, but they are required to keep records about applications for permanent positions filled for at least one year.