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Occupational health nurses' ability to use email efficiently and effectively enhances their professionalism, responsiveness, and overall communications. Poorly written emails can damage the reputations of nurses and their organizations. Knowing when not to communicate by email is as important as being able to write effective emails. Many safeguards can be employed to prevent or minimize confusion and strengthen email communications. Names and addresses must be checked, appropriate subject lines used, and humor applied conscientiously. All emails should be proofread prior to sending, and replies must be carefully considered. Simple, colorless email backgrounds make downloading quicker. Sharp, clear fonts are easier on the eyes. Direct and defined requests and confirmations augment communication. Once "Send" is pressed, the email is out of the sender's control. Lack of network security, forwarding by others, and potential confidentiality breaches can lead to legal or public relations controversies. Email is an important business tool. Occupational health nurses must be competent in the skills of effective email communication, as it is an integral part of business and health care.

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Personal Information Management (PIM) studies the practice of storing, organizing, and retrieving information by an individual in support of their roles and tasks (Bergman, et al., 2004). One important problem in PIM is information fragmentation (IF) — the condition of having data in different formats, distributed across multiple locations, manipulated by different applications, and residing in a generally disconnected manner (Tungare, 2007). IF can conflict with the PIM ideal that users should have access to the right information at the right time, in the right place, in the right form, and of sufficient completeness and quality to perform the task at hand (Bergman, et al., 2004). It is typically assumed that IF is unintentional, and occurs as a result of the many applications and devices we use to do our daily work. It is further assumed that IF is "bad" or has negative consequences. In this thesis, I study when IF occurs intentionally. Intentional IF (IIF) refers to the fragmentation in PIM that occurs when a person fragments his or her own personal data purposefully. Although research into the problem of IF has been growing quickly in the past decade, IIF has not been investigated in the literature. Prior studies have portrayed IF as a problematic type of information management. Email is a common context in which IF is found. While IF in email may be unintentional, such as when required by an employer, it is also likely to be intentional, as is the case when users use separate email accounts for different purposes. To further the research in this field, this project investigated the phenomenon of IIF in email by conducting and analyzing data from an online survey. In addition to finding the extent of IIF in email, the survey addressed what motivates the participant to purposely fragment their email as well as the advantages and disadvantages in doing so. My study is the first that has explored intentional fragmentation of information. The findings of this study show that IIF exists in email usage, revealing that IIF occurs across a user's devices and also across a user's multiple email accounts. The two most common motivations for IIF are to keep information separated by the user's social roles (work, school, personal communications, etc.), and to filter out extraneous information in order to simplify their information management. These results show that in addition to the negative consequences of IF there also exists positive uses of IF, that is helpful for some users. / Master of Science

Email has become deeply embedded in many users' daily lives. To investigate how email features in users lives, particularly how users attend to email and get lost within it, I ran five studies that probed how users determined relevancy of messages, logged interactions with email, gathered diary entries related to individual sessions, and investigated the gratifications sought from email use. For the first study, I performed an exploratory experiment in the laboratory to determine how participants assessed the importance of individual emails (N=10). The next investigation I undertook involved three different studies, which I detail individually: a survey on email usage (N=54); a two-week study of email usage (N=20); and finally, the application of Attentional Network Test (N=9). My final study was to validate my findings around the reasons for attending to email, this was done through deploying a survey that followed the Uses and Gratification Theory tradition (N=52) In my studies I found that the majority of attentional effort is around reading email and participating in conversations, as opposed to email management. I also found that participants attended to email primarily based on notifications, instead of the number of unread messages in their inbox. I present my results through answering several research questions, and leverage Conversation Analysis (CA), particularly conversation openings, to explicate several problematic aspects around email use. My 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. My findings have several implications: email triage does not seem to be problematic for the participants in my studies, somewhat in contrast to previous research; much of the problem around email, particularly emph{getting lost in email} is in managing the tension between promptly responding to messages while limiting engagement with email; due to the social nature of the problems with email, modifications to the email client are limited in their potential effectiveness to prevent getting lost and reduce email related anxiety. / Ph. D.

A phishing email is a crime where a scammer sends an email to get sensitive data. Everyday phishing email attacks impact billions of people worldwide. Preparing users to better identify phishing and avoid risky engagement with it is essential to combat this threat. We consider that as phishing emails and email marketing aim to target email clicks, scammers can use marketing practices in phishing emails to achieve their goals. However, the security research community doesn't explore deeply the similarities between phishing and email marketing. This study presents a distinctive framework known as the Phishing Engagement Marketing Optimization (PEMO). The primary objective of PEMO is to provide practices commonly used in email marketing to be applied to phishing simulations. This work presents the methodology to apply PEMO to phishing simulations and a hypothetical scenario to help understanding. We also determined which PEMO practices have a significant effect on phishing email engagement. To address the research problem, we ran an experiment with 400 participants to evaluate how they engage with 100 emails, where 92 were original emails and 8 were phishing emails. We also collected information about the motive of the decision-making behavior. Results showed that lower-risk participants, classified here as non-offenders, were not able to recognize phishing which applied Usability and Influence or Persuasion and Usability practices. In addition, higher-risk participants, classified here as offenders, increased replied and forwarded engagements with phishing which applied Persuasion practices. This work can help information security specialists better prepare users to avoid risky engagements with phishing attacks that apply marketing practices by designing phishing simulations that leverage those same practices.

This thesis investigates the effect of incorporating various information visualisation techniques and non-speech sounds (i.e. auditory icons and earcons) in email browsing. This empirical work consisted of three experimental phases. The first experimental phase aimed at finding out the most usable visualisation techniques for presenting email information. This experiment involved the development of two experimental email visualisation approaches which were called LinearVis and MatrixVis. These approaches visualised email messages based on a dateline together with various types of email information such as the time and the senders. The findings of this experiment were used as a basis for the development of a further email visualisation approach which was called LinearVis II. This novel approach presented email data based on multi-coordinated views. The usability of messages retrieval in this approach was investigated and compared to a typical email client in the second experimental phase. Users were required to retrieve email messages in the two experiments with the provided relevant information such as the subject, status and priority. The third experimental phase aimed at exploring the usability of retrieving email messages by using other type of email data, particularly email threads. This experiment investigated the synergic use of graphical representations with non-speech sounds (Multimodal Metaphors), graphical representations and textual display to present email threads and to communicate contextual information about email threads. The findings of this empirical study demonstrated that there is a high potential for using information visualisation techniques and non-speech sounds (i.e. auditory icons and earcons) to improve the usability of email message retrieval. Furthermore, the thesis concludes with a set of empirically derived guidelines for the use of information visualisation techniques and non-speech sound to improve email browsing.

As a result of the rapid development of technology and the implementation of it in work environments, productivity and profit can increase for an organization. Email has led to much shorter ways of communication but there are also less positive aspects of technology. Technostress, information overload and email overload are all three effects of this new ubiquitous digital era. We ask how individual information workers manage and reply to incoming email, to extend our knowledge regarding the effects of email overload on information workers, and to identify their coping strategies in their work life context. This knowledge can be used by practitioners, designers and researchers to develop email as a service further. By conducting nine qualitative interviews with information workers employed in three different organization, we found that balance in email management is important to utilize the full potential of the service, and it would be useful for individuals, as well as organizations, to establish clear rules regarding email use both within work hours, as well as on leisure time.

Email spam has steadily grown and has become a major problem for users, email service providers, and many other organizations. Many adversarial methods have been proposed to combat spam and various studies have been made on the evolution of email spam, by finding evolution patterns and trends based on historical spam data and by incorporating spam filters. In this thesis, we try to understand the evolution of email spam and how we can build better classifiers that will remain effective against adaptive adversaries like spammers. We compare various methods for analyzing the evolution of spam emails by incorporating spam filters along with a spam dataset. We explore the trends based on the weights of the features learned by the classifiers and the accuracies of the classifiers trained and tested in different settings. We also evaluate the effectiveness of the classifier trained in adversarial settings on synthetic data.

The storage space for emails has been increasing at a rapid pace day by day. Email systems still serve as very important data repositories for many users to store different kinds of information which they use in their daily activities. Due to the rapidly increasing volume of email data, there is a need to maintain the data in a most efficient way. It is also very important to provide intuitive and flexible search utilities to provide better access to the information in the email repositories, especially in an enterprise or organizational setting. In order to implement the functionality, we are presenting a tool name TESO. TESO is a tool for email searching using organizational information. This tool is designed to improve the relevancy of the email search by integrating the data from email servers and organizational information from directory services and other resources. We implement this functionality as an add-on for the Mozilla Thunderbird framework, which is an open source email client system developed by the Mozilla Foundation. The results are evaluated using the SQLite and the XML data. This work will serve as a handy tool in the area of existing information integration and keyword search on relational databases techniques and also helps in efficient access of XML information.