Electronic mail systems Electronic mail messages 3 Language 3 Information technology 2 Moral and ethical aspects 2 Politeness (Linguistics) 2 Security measures 2 Speech acts (Linguistics) 2 Automation 1 Business communication 1 Case studies 1 Communication 1 Communication in organizations 1 Corporations 1 Discourse analysis, Literary 1 Gender-based analysis 1 Internet users 1 Interpersonal relations 1 Management 1 Microblogs 1 Online social networks 1 Pragmatics 1 Public key infrastructure (Computer security) 1 School management and organization 1 Sex differences 1 Social aspects 1 Sociolinguistics 1 Spam (Electronic mail) 1 Telematics 1 Terminology 1