You can find your InMail response rate by accessing the InMail Report.
The InMail response rate is calculated with the total number of messages sent during the selected time period that have received a response as of today. This calculation includes free InMail messages sent to direct connections and Open Profile members as well as InMail messages that are sent in bulk. It does not include messages sent to email addresses. Only responses received within the first 30 days following the message sent date are included in the response rate.
The Reply to message and Not Interested buttons are visible to the candidates and displayed at the bottom of the InMail message you sent them.
Important to know
As part of the Recruiter InMail Policy, Recruiters must maintain an InMail response rate of at least 13% on 100 or more InMail messages sent within every 14-day assessment period.
Here's a tip
Automated follow-up messages are treated as individual messages and will count toward your InMail response rate.