Der Nachrichtenverkehr innerhalb von vielen Unternehmen wird zu einem großen Teil über Mailinglisten abgewickelt. Um die Vertraulichkeit sensibler Daten zu gewährleisten, ist es notwendig, die Nachrichten zu verschlüsseln. Ziel dieses Papiers ist es, existierende Konzepte für sichere E-MailVerteiler zu diskutieren und unter Verwendung von zeitgemäßen Technologien umzusetzen. Ein wichtiger Punkt...

E-mail brings us lots of conveniences. Especially with help of PGP and S/MIME, it gives both confidentiality and message/origin authentication. However, in some cases for strong privacy, a message sender will not want to let others know even the fact that he sent a message to a recipient. Very recently, Harn and Ren proposed a fully deniable authentication scheme for E-mail where a sender can r...

Most e-mail readers spend a significant amount of time regularly deleting junk e-mail (spam) messages, which are a part of marketing campaigning efforts of various companies wherein users normally signed in and it also results in increasing volume of storage space and consumes network bandwidth. A challenge, therefore, rests with the developers and improvement of automatic classifiers that can ...

A new system for spam e-mail annotation by end-users is presented. It is based on the recursive application of hand-written annotation rules by means of an inferential engine based on Logic Programming. Annotation rules allow the user to express nuanced considerations that depend on deobfuscation, word (non)occurrence and structure of the message in a straightforward, human-readable syntax. We ...

The present work describes a novel model for managing e-mail accounts both by reducing the attachment failure and reply prediction. The prediction model is based on the property of social insects known as stigmergy. Stigmergy is a mechanism of (indirect) coordination through local modifications to a shared environment. Incorporating this innovative solution, certain promising results are presen...

EMFET is an open source and flexible tool that can be used to extract a large number of features from any email corpus with emails saved in EML format. The extracted features can be categorized into three main groups: header features, payload (body) features, and attachment features. The purpose of the tool is to help practitioners and researchers to build datasets that can be used for training...

Forgotten attachments of e-mail message are a common and obnoxious problem. Several E-mail readers provide plugins that attempt to tackle this problem by trying to guess whether a message needs an attachment and warn the user in case s/he does not attach a file to such a message. However, these approaches essentially only work with a fixed list of keywords, which trigger such a warning whenever...

In this paper we present protocols for distributed certified e-mail, which use encryption to ensure both confidentiality and fairness. As with other protocols for certified e-mail, ours achieve fairness by placing trust on an external entity, referred to as the Trusted Third Party (TTP). The TTP can become a bottleneck, however, and we explore scenarios that support a distributed TTP, in the co...

Electronic Government Network (GovNet) e-Mail System, one of the services offered as part of the GovNet Project in Mozambique is expanding. A significant growth in the number of users of the GovNet e-Mail system is expected in the next few months due to the addition of 63 new sites /institutions as part of the GovNet-Extension Project. To address the expected demand on the GovNet IT resources t...

Organizations require ways to efficiently distribute information such as news releases, seminar announcements, and memos. While the machinery for information storage, manipulation, and retrieval exists, research dealing directly with its distribution in an organizational context is scarce. In this paper, we address this need by first examining the pros and cons of the conventional “mailing list...