Email has become deeply embedded in many users' daily lives. To investigate how email features in users lives, particularly how users attend to email, we ran a 2-week study that logged interactions with email and gathered diary entries related to individual sessions. Our study showed that the majority of attentional effort is around reading email and participating in conversations, as opposed to email management (deleting, moving, flagging emails). We found that participants attended to email primarily based on notifications, instead of the number of unread messages in their inbox. We present our results through answering several questions, and leverage conversation analysis, particularly conversational openings, to explicate several issues. Our findings point to inefficiencies in email as a communication medium, mainly, around how summons are (or are not) issued. This results in an increased burden on email users to maintain engagement and determine (or construct) the appropriate moment for interruption. RESEARCH HIGHLIGHTS In this article, we have several research contributions on how users attend to email, how email features in their lives, and why there is anxiety involved in email use. • The majority of attentional effort in email is around reading email and participating in conversations, as opposed to email management and triage (e.g. moving or deleting messages). • Participants in our study respond much more strongly and frequently to notifications about individual messages, as opposed to the overall criticality of the inbox (i.e. the unread count). • Our participants did not use the unread count, even though this is one of the few methods provided for monitoring email. • We leverage conversation analysis (CA), particularly around conversational openings and summonsanswer sequences to explain how email grabs attention. • We also categorize emails into four different types of requests for attention. • Overall, we find that conversations through email increase the burden of determining interruptibility on the receivers of email, when comparing with other mediums (e.g. face-to-face and over the phone).