“…Usually, receivers of online messages appreciate short response latencies, that is a high responsiveness of their communication partners (Kalman & Rafaeli, 2011). Although average response time to incoming e-mail is typically low, responsiveness varies considerably between individuals (Kalman & Ravid, 2015;Kalman, Ravid, Raban, & Rafaeli, 2006) and may also fluctuate within individuals. Responsiveness to e-mail is predicted both by stable traits such as extraversion (Kalman et al, 2013) as well as by situational factors such as the number of received messages and attention paid to the inbox (Kalman & Ravid, 2015), characteristics of the sender (e.g., work-relationship between sender and recipient) and the perceived importance of the message (Dabbish, Kraut, Fussell, & Kiesler, 2005) as well as the recipient's engagement in other tasks when the message arrives (Avrahami & Hudson, 2006).…”