Electronic Mail Security

2008 ◽  
pp. 246-265
Author(s):  
Manuel Mogollon
Keyword(s):  
Network Security ◽  
Electronic Mail ◽  
Post Office ◽  
Security Services ◽  
Computer Communications ◽  
Systems Security ◽  
Mail Server ◽  
E Mail

In previous chapters of this book, crypto systems, security mechanisms, and security services have been discussed and reviewed as separate crypto modules. In Chapters 10 to 14, how these crypto modules are used to provide network security will be discussed. Electronic mail enables users to exchange messages using computer communications facilities, but sending an e-mail message is like sending a postcard that anyone can read as it travels from post office to post office. When an e-mail message travels from one e-mail server to another, the e-mail is first stored in an e-mail server before it is sent to the next e-mail server. A way to protect e-mail is by using writer-to-reader security in which the message is encrypted at the sender station and deciphered at the receiver station. There are several ways to make e-mail secure. Pretty Good Privacy (PGP) and Secure MIME (S/MIME) are presented in this chapter.

scholarly journals Implementasi Mail Server Berbasis Squirrelmail Dengan Exchange Server Menggunakan Teknologi Virtualisasi di SMK Negeri 1 Pendalian IV Koto

2018 ◽  
Vol 14 (2) ◽  
Author(s):  
Basorudin Basorudin
Keyword(s):  
Web Server ◽  
Distributed Database ◽  
Domain Name System ◽  
Post Office ◽  
Domain Name ◽  
Web Browser ◽  
Access Protocol ◽  
Directory Service ◽  
Mail Server ◽  
E Mail

Teknologi virtualisasi server merupakan penggunaan bersama satu mesin fisikal oleh beberapa sistem operasi server. Perancangan dan implementasi mail server ini dibangun dengan menggunakan Debian.5 sebagai base operating system server. Perancangan dan implementasi mail server ini dibangun dengan menggunakan dns server, web server dan mail server/squirrelmail, di konfigurasi menggunakan bantuan aplikasi virtualbox sebagai server. DNS (Domain Name System) adalah sebuah sistem yang menyimpan informasi tentang nama host maupun nama domain dalam bentuk basis data tersebar (distributed database) di dalam jaringan komputer, misalkan Internet. Aplikasi yang digunakan untuk menangani penghantaran pesan mail adalah mail server. Mail server ini senantiasa menerima pesan dari e-mail client yang digunakan user, atau mungkin dari server e-mail lainnya. Web mail berfungsi untuk mengirim dan melihat pesan email melalui web browser. Konfigurasi squirrelmail dilakukan dengan menjalankan skrip conf.pl : $/var/www/wemail/config/ conf.pl. Layanan Exchange Server antara lain : Directory Service, Simple Mail Transfer Protocol (SMTP), Post Office Protocol ( POP3 ), IMAP (Internet Message Access Protocol), Complementary Services, System Attendant. Untuk Proses Pengiriman Mail Server dapat dilihat pada nomor 5.2. Kata Kunci: Squirrelmail, Exchange Server, DNS Server, Web Server, Mail Server.

scholarly journals Sistem Keamanan Multi Mail Server dengan Teknik Enkripsi OPENPGP pada Zimbra Exchange Open Source Software

2020 ◽  
Vol 7 (3) ◽  
pp. 493
Author(s):  
Amrul Faruq ◽  
Khaeruddin Khaeruddin ◽  
Merinda Lestandy
Keyword(s):  
Open Source Software ◽  
Electronic Mail ◽  
Public Key ◽  
Test Results ◽  
The Public ◽  
Private Key ◽  
Mail Server ◽  
Mail Service ◽  
Server Application ◽  
E Mail

<p class="Abstrak">Surat elektronik atau <em>email</em> merupakan media komunikasi yang sangat populer. Untuk mengirim dan menerima email, diperlukan sebuah penyedia <em>(server)</em> yang di dalamnya terdapat layanan <em>email</em>. <em>Zimbra Collaboration Suite (ZCS)</em> merupakan salah satu aplikasi <em>mail server powerfull</em> yang dapat dipergunakan sebagai aplikasi <em>mail</em> <em>server</em> dalam jumlah user puluhan hingga ribuan. Pada penelitian ini, sistem enkripsi pada Zimbra <em>multiple-mail</em> <em>server</em> menggunakan metode OpenPGP  diimplementasikan untuk mengamankan isi <em>email</em> yang dikirim maupun yang diterima, yaitu dengan memanfaatkan <em>public key</em> dan <em>private key</em>. Hasil pengujian menunjukkan metode <em>OpenPGP </em> mampu bekerja dengan baik untuk keamanan sistem pengiriman dan atau penerimaan <em>email</em> pada <em>multi mail server</em>.</p><p class="Abstrak"> </p><p class="Abstrak"><em><strong>Abstract</strong></em></p><p class="Abstract"><em>Electronic mail or e-mail is a very popular communication medium. To send and receive e-mails, a provider (server) is needed in which there is an e-mail service. Zimbra Collaboration Suite (ZCS) is one powerful mail server application that can be used as a mail server application in the number of users from tens to thousands. In this study, the encryption system on the Zimbra multiple-mail server uses the OpenPGP  method to be implemented to secure the contents of e-mails sent and received, namely by using the public key and private key. The test results show that the OpenPGP  method works well for the security of the email sending/receiving system on a multi-mail server.</em></p>

Sistem Auto Backup Elektronik Mail Pada Mail Server Menggunakan Cron Job

2018 ◽  
Vol 5 (2) ◽  
pp. 79-90
Author(s):  
Muhammad Imam Muarif ◽  
Dadan Irwan
Keyword(s):  
Operating System ◽  
Key Words ◽  
Open Source ◽  
Electronic Mail ◽  
Computer Network ◽  
The Other ◽  
Domain Name ◽  
Mail Server ◽  
E Mail ◽  
Server System

ABSTRACT   Electronic mail or commonly called e-mail is a mailing service that uses computer network for sending and receiving mail. On the other hand, e-mail mostly used as one of the supporting media for any communication activities. Therefore the purpose of this research is applying auto backup email system on mail server at Unisma Bekasi software laboratory.  Mail server used is Zimbra open source with Ubuntu Linux 14.04 operating system. To support the necessary elements, the bind9 system is used for naming the domain name that provides addressing on the server system. By having cronjob feature on Webmin, it makes a solution automatically command for auto backup which is combined with scrip. User account capacity and mailbox on mail server Zimbra can accommodate bigger mail compared to other servers such as qmail or postfix.     Key words: mail server, open source, zimbra, cron job, auto backup.        ABSTRAK   Surat elektronik atau biasa disebut e-mail adalah suatu layanan surat menyurat yang menggunakan media jaringan komputer dalam mengirim dan menerima surat. Penggunaan e-mail sendiri lebih banyak dipakai sebagai salah satu media pendukung dari setiap kegiatan komunikasi. Tujuan dari penelitian  ini adalah menerapkan sistem auto backup email pada mail server pada laboratorium software Universitas Islam 45. Mail server yang digunakan adalah zimbra open source dengan sistem operasi Linux Ubuntu 14.04. Untuk mendukung unsur-unsur yang diperlukan, penamaan nama domain menggunakan sistem bind9 yang menyediakan pengalamatan pada sistem server. Dengan adanya fitur cron job pada webmin, menjadikan solusi untuk melakukan sebuah perintah otomatis dalam melakukan auto backup yang dikombinasikan dengan script. Kapasitas user account dan mail box pada mail server zimbra dapat menampung lebih banyak dibandingkan mail server lainnya, seperti qmail atau postfix.   Kata kunci: mail server, open source, zimbra, cron job, auto backup.

Using a WWW-based Mail User Agent for Secure Electronic Mail Service for Health Care Users

1998 ◽  
Vol 37 (03) ◽  
pp. 247-253 ◽  
Author(s):  
K. Ohe ◽  
S. Kaihara ◽  
T. Kiuchi
Keyword(s):  
Information Exchange ◽  
Electronic Mail ◽  
Medical Professionals ◽  
Secure Socket Layer ◽  
User Agent ◽  
Mail Server ◽  
Hypertext Transfer Protocol ◽  
Secure Network ◽  
Mail Service ◽  
Mail System

AbstractWWW-based user interface is presented for secure electronic mail service for healthcare users. Using this method, communications between an electronic mail (WWW) server and users (WWW browsers) can be performed securely using Secure Socket Layer protocol-based Hypertext Transfer Protocol (SSL-HTIP). The mail can be encrypted, signed, and sent to the recipients and vice versa on the remote WWW server. The merit of this method is that many healthcare users can use a secure electronic mail system easily and immediately, because SSL-compatible WWW browsers are widely used and this system can be made available simply by installing a WWW-based mail user agent on a mail server. We implemented a WWWbased mail user agent which is compatible with PEM-based secure mail and made it available to about 16,000 healthcare users. We believe this approach is effective in facilitating secure network-based information exchange among medical professionals.

scholarly journals A Dockers Storage Performance Evaluation: Impact of Backing File Systems

2021 ◽  
pp. 8-17
Author(s):  
Amer Ramadan ◽  
Keyword(s):  
Performance Evaluation ◽  
Experimental Design ◽  
File Systems ◽  
Experimental Results ◽  
File Server ◽  
Storage Performance ◽  
File Access ◽  
Mail Server ◽  
The Impact ◽  
E Mail

This paper reports on an in-depth examination of the impact of the backing filesystems to Docker performance in the context of Linux container-based virtualization. The experimental design was a 3x3x4 arrangement, i.e., we considered three different numbers of Docker containers, three filesystems (Ext4, XFS and Btrfs), and four application workloads related to Web server I/O activity, e-mail server I/O activity, file server I/O activity and random file access I/O activity, respectively. The experimental results indicate that Ext4 is the most optimal filesystem, among the considered filesystems, for the considered experimental settings. In addition, the XFS filesystem is not suitable for workloads that are dominated by synchronous random write components (e.g., characteristical for mail workload), while the Btrfs filesystem is not suitable for workloads dominated by random write and sequential write components (e.g., file server workload).

scholarly journals A Secure Methodology for Filtering Spam & Malware in E-mail System and Secure E-mail Testbed Setup

2021 ◽  
Vol 10 (2) ◽  
pp. 651-657
Keyword(s):  
Critical Infrastructures ◽  
Mail Server ◽  
Security Properties ◽  
Experimental Testbed ◽  
Typical Configuration ◽  
Mail System ◽  
E Mail

E-mail system is one of the critical infrastructures of any organization. It is necessary to ensure that the mail servers in use should be secured in such a way that no security properties like confidentiality, integrity, and authenticity are compromised. To achieve these security properties we have setup a secure e-mail server testbed that provides security against malware and spam, and guaranties secure e-mail delivery. This paper proposes a secure methodology for filtering spam and malware in the e-mail system, comprising standard layers of protocols and policies. An experimental testbed is established to evaluate the effectiveness of our methodology and was tested with spam and malware e-mails. Our results showed an accuracy of 95 percent, against a typical configuration of an e-mail system.

scholarly journals Didi Bima 165100122

2019 ◽  
Author(s):  
Didi Bima Yudha
Keyword(s):  
Electronic Commerce ◽  
Customer Service ◽  
Computer Technology ◽  
Electronic Mail ◽  
Personal Digital Assistant ◽  
Advanced Technology ◽  
Business Interests ◽  
Business Partners ◽  
Networking Technologies ◽  
E Mail

Electronic Commerce (e-commerce) is the process of buying, selling orexchanging products, services and information via computer networks. e- commerce is part of the e-business, where the scope of e-business more broadly, not just commercial but also include business partners, customer service, job vacancies. In addition to networking technologies www, e-commerce technology also requires a database or a database (database), e-mail or electronic mail (e- mail), and the form of non-computer technology as well as other delivery systems, and means of payment for e -Commerce. Given the electronic commerce (e- commerce) is then the customer can access and perform orders from various places. Given the current era of advanced technology is the customer who wants to access e-commerce does not have to be somewhere, it is because in the big cities in Indonesia have a lot of places that provide an internet access facility using only the laptop / notebook or by Personal Digital Assistant (PDA) using wifi technology. Thus the time is now very necessary and desirable companies to implement e-commerceservices. The use of e-commerce in Indonesia is still very limited. From the background that there is then the author will discuss how e- commerce pemanfaaatan in their business interests.

Electronic mail-E-mail at work

IEEE Spectrum ◽  
1992 ◽  
Vol 29 (10) ◽  
pp. 24-28 ◽  
Author(s):  
T.S. Perry
Keyword(s):  
Electronic Mail ◽  
E Mail

Electronic Mail Security

2011 ◽  
pp. 147-160 ◽  
Author(s):  
Edwin I. Achugbue
Keyword(s):  
Electronic Mail ◽  
The Internet ◽  
Security Threat ◽  
The Future ◽  
History Of ◽  
The Individual ◽  
Mail Address ◽  
E Mail

The chapter focuses on the history of the internet system of e-mail; e-mail security; threat to e-mail security, usefulness of e-mail address and country codes, how e-mails can be secured by the individual and electronic mail policy. The future of e-mail security is also described.

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