Related YoLinux Tutorials:
°YoLinux Tutorials Index
GUI/X-Window mail clients:
- LDAP Enabled:
- Netscape -
Internet Mail, News and Browser (My favorite GUI e-mail client Netscape 4.7x,
version 6 does not support LDAP yet. If you don't need LDAP version 6.0 is
better because it can support multiple accounts/servers)
- Mozilla.org - Netscape is based upon this code release. Updates are more frequent than for Netscape but it is essentially the same.
- Balsa - Gnome project - POP3, IMAP,
multi-threading, reads GnomeCard address book, LDAP and render HTML mail.
This client (balsa 1.1.1) is actually LDAP enabled but in a clutsy way, it
dumps the entire LDAP directory into the address book.
- Sylpheed - (LDAP support must be added with source code patch)
- XPine - mail client
- TradeClient - support for SMTP, POP3, Full IMAP, LDAP (DOES NOT!!! I tried the LDAP support and failed), spell checking.
Web Based e-Mail Clients's:
- SquirrelMail - PHP4 mail client
- Zimbra -
based web mail and calendering, antispan, search, backup, archiving,
.... Built on top of Tomcat, MySQL, JAVA, Apache, Lucene, ClamAV,
SpamAssassin, OpenLDAP and Postfix technologies. [flash pressentation] It rocks.
- IMP - Provides webmail access to IMAP and POP3 accounts. (Written in PHP)
- Calacode.com: @Mail - Web and wireless. PERL (source). POP3, IMAP, Calendar, to do lists,... - Commercial product
Console/Text Based e-Mail Clients's:
- Mutt (Favorite console e-mail app for many of my friends) Supports LDAP.
- Pine - Program for Internet News & Email
- Elm - Electronic Mail for UNIX
Commercial e-Mail Clients's:
Fetchmail is used to download mail using POP or IMAP and route it through
port 25, the MTA/SMTP port on your system. It will then be handled by
sendmail (or whatever SMTP agent you are using) for the given user account.
Typically the mail ends up in the /var/spool/mail/user-name/
Configuration / Use:
|| As Far As I'm Concerned
|| As Far As I Know
|| Away From Keyboard
|| Also Known As
|| Bulletin Boeard System. The Usenet collections of
newsgroups is the worlds largest distributed BBS. Private systems often
|| Big F**ing Deal
|| Bye for now.
|| By The Way
|| Goodby in Italian. Promounced Chow.
|| End of message. Often put at the end of the
Subject heading to let the person know that the whole message was in
the Subject and there is no need to open the email.
|| Frequently asked questions. Often a list of questions and answers which are most common of first time users of visitors.
|| posting of messages in a hostile manner.
|| F**ed Up Beyond All Recognition
|| In my humble opinion
|| Laugh Out Loud
|| Not Applicable
|| Original Equipment Manufacturer
|| Politically Correct
|| Read Between The Lines
|| Rolling On The Floor Laughing My Ass Off
|| Rolling On The Floor Laughing
|| Rest & Relaxation
|| Read the F**n Manual
|| Thanks In Advance
|| Wild Ass Guess
|| What You See Is What You Get
|| Hugs and Kisses
Heavy encryption methods are used to encrypt a decryption key.
A lighter encryption method is then used to encrypt the email. ( i.e.
SHA, Blowfish, Unix crypt, MD5,...) It is the encryption of the
decryption key which is often refered to as that having 128 bit level
of encryption with the methods below.
The support of encryption with MIME (Multipurpose Internet Mail Extensions)
which allows encryption to be integrated with email clients. Without this
support, decryption will be a manual process.
- MOSS: (MIME Object Security Services) is an email encryption protocol
in accordance with MIME.
- PGP: (Prety Good Privacy) is considered the de facto standard for email
encryption on the internet. PGP performs encryption, decryption, signing,
verification, and key management.
- PGP/MIME: This integrates MIME and PGP so that the email client can handle
encryption/decryption of the email rather than the user handling the
encrypted email as an attachment which is encrypted/decrypted manually.
- Message Format: PGP binary
- Certificate Format: PGP binary
- Symetric encryption algorithm: TripleDES (DES EDE3 Eccentric CFB)
- Signature algorithm: ElGamal with DSS
- Hash algorithm: SHA-1
- MIME encapsulation of signed data: multipart/signed with ASCII
- MIME encapsulation of encrypted data: multipart/encrypted
- S/MIME: Developed by RSA and thus uses RSA encryprion.
Multiple versions 2/3. Not designed to be interoperable with with
- Message Format: CMS (Cryptographic Message Syntax) (RFC 3369)
- Certificate Format: X.509v3 (RFC 2632)
- Symetric encryption algorithm: TripleDES (DES EDE3 CBC)
- Signature algorithm: Diffie-Hellman (X9.42) with DSS (RFC 2631)
- Hash algorithm: SHA-1
- MIME encapsulation of signed data: multipart/signed or CMS
- MIME encapsulation of encrypted data: application/pkcs7-mime
For more information see the Internet Mail Consortium
- RFC 2557 - MIME E-mail Encapsulation of Aggregate Documents, such as HTML (MHTML)
- RFC 2634 - S/MIME V3 - Enhanced Security Services for S/MIME
- RFC 2633 - S/MIME V3 - Message Specification
- RFC 2632 - S/MIME V3 - Certificate Handling
- RFC 2586 - Audio/L16 MIME content type
- RFC 2426 - vCard MIME Directory Profile
- RFC 2231 - MIME Parameter Value and Encoded Word Extensions
- RFC 2156 - Mail headers - Mapping between X.400 and RFC 822/MIME
- RFC 1327 - Mail headers - Mapping between X.400 and RFC 822/MIME
- RFC 1148 - Mail headers - Mapping between X.400(1988) / ISO 10021 and RFC 822
- RFC 1138 - Mail headers
- RFC 1123 - Mail headers
- RFC 822 - Mail headers - This explains what e-mail headers look like