Free imap vs pop3 software for linux

IMAP Calendar Proxy implements an HTTP proxy that converts HTTP PUT requests of vcalendar data to separate messages stored on an IMAP server.

IMAP Calendar Proxy project can be used with Mozilla Sunbird/Calendar to allow storage of a calendar via IMAP.

There are many issues with the program in its current state. Consider it alpha quality, and you may lose calendar data if you use it. Its more of a proof of concept right now. Its rather slow if you have a large calendar.

Ideally IMAP support should be built into Mozilla. This is just a hack. Id like to hear any feedback on how it works. See the TODO file for features Id like to implement.

Sunbird can post calendars to a remote HTTP server via HTTP PUT and to
synchronize via a GET before a PUT. This proxy should run on the same system
you run Sunbird on. It makes a connection to an IMAP server and selects
a specified folder.

It then retrieves all calendar data from that server and caches it it memory. Any changed to the calendar are HTTP PUT to this proxy, and it determines what to do on the IMAP server (delete, change, add). Instead of posting the whole calendar back to the server, it only posts the differences.

If you run the proxy elsewhere on the network, you will not get any bandwidth
savings because the HTTP PUT and GET are still done over the network.

IMAP Spam Begone is a script that scans an IMAP inbox for spam using SpamAssassin, moving any found to another folder. Unlike the normal mode of deployments for SpamAssassin, isbg does not need to be involved in mail delivery, and can run on completely different machines to where your mailbox actually is.
It has been filtering my work email, some of which comes from a legacy email address that is from a spam unfiltered system. I run it as a cronjob every 15 minutes, and have had it doing that for 6 months. I get about 500 spams a month. Many other users are using it for a various servers abd a variety of platforms.
There are no known outstanding bugs.
Main features:
- Works with all common IMAP servers
- Works on Linux, MacOS X and Windows
- Can do IMAP over SSL
- Can remember your password
- Will work painlessly against multiple IMAP accounts and servers
- Is not involved in the mail delivery process, and so can run on any machine that can contact your IMAP server
- Highly configurable
- Sensible defaults so you dont have to do any configuring :-)

Perl Pop3 is a POP3 server fully implemented in Perl.
The advantages over other POP3 servers are that it is not a memory hog, and can be used to connect to databases for authentication.
Also, its code is easy to extend for any other uses, like POP-before-SMTP and extended logging.
Main features:
- Does not read the mailbox into memory, it reads what it needs as it processes the mailbox, so its memory requirements are low.
- Most email delivery is just printing out to the client; this is done in a fast and efficient way.
- It uses the systems users in the default unix way, but it can be changed to read users off a database (using DBI/DBD). It is prepared to use the database right away and can be extended or configured to use existing systems.
- It can be use to solve the smtp authentication via popauth or relay-domains (with sendmail) so users can be permitted to send smtp mail after pop3 authentication. This has been an effective solution for roaming users.
- Logging can be extended beyond the use of text files to any other method available in Perl, including database systems.
- Also, security is not an issue, as input is strictly controlled.
Using an easily modifiable daemon as part of a e-mail solution can be of great advantage over other existing systems in other languages. Further development will also try to incorporate more easily configurable extensions and plugins, so rapid deployment and extensibility is achieved.
Installation:
For installation instructions and configuration please see the INSTALL file. For more detailed information, consult the DOC file.

Debian vs Pimientos is an arcade game developed using the SDL libraries SDL, SDL_image, SDL_mixer, and SDL_ttf. This permits the portability of the game to some systems and machines.
Debian vs Pimientos is the first game of NEOPONTEC Games, and the first to use the NNG Engine (New Neopontec Gaming Engine) developed by Hector Blanco (me) that uses the mentioned SDL Libraries.
The game concept is very easy to understand and to play. There are a lot of peppers (pimientos is the spanish word for peppers) that are flying by the sky, and you, armed with the Debian logo must fight them. The Debian logo shoots GNU heads to kill these devil pimientos
Main features:
- 800x600 resolution at 32 bits.
- High quality images.
- Addictive and funny playing experience
- Cross-platform open source game: (binaries for Win32 & Linux, and sources for other systems).
- Different classes of peppers (pimientos).

lollipop is a POP3 server that is almost RFC 1939 compliant. lollipop main goal is speed, since it is designed for users who store very large numbers of messages (>4000) on the server. It only supports the maildir storage format.
This is an almost rfc1939 compliant POP3 server. The main goal of this program is the speed, especially if you have many mails in your maildir (>4000) and you want to store your mails on the server.
I created this program to provide a solution for my problem. I have a small server in my house and this collects my emails from my addresses (fetchmail, exim local delivery). I have a very good backup system for this machine, powered by dirvish. I have two desktops and a laptop computers. I want to store all of my emails (over 6000) on the server in maildir - mainly because this is an archived machine.
I tried to use IMAP, but unfortunately I found it slow even on fast ethernet LAN. I switched to POP3 with leave on server option but the statistic step was very-very slow. On my laptop I got timeouts before the statistic step done so its impossible to use this method on this slow machine.
Finally I decided to write a special POP3 server for this task. Poppy has memory and it reports as new mail only the new mails after the last download for that location. Its supports only maildir because for this solution, the mailbox isnt optimal. Your maildir must be in ~/.maildir if you use maildir with other name, create a link to it.
Configure: change the LAN address to your LAN (for example 192.168.1.1) in the beginning of the script.
Usage: just start it in the background. (./lollipop.pl &) and make sure not using another pop3 server.
Enhancements:
- CAPA in AUTH state was fixed.

The Cyrus IMAP server is generally intended to be run on sealed systems, where normal users are not permitted to log in.

Electronic mail is a major infrastructure service of almost all organizations. At Carnegie Mellon the use of electronic mail has overshadowed the use of all other distributed services since the early 1990s. It is a core part of the business process of most departments. The universal availability of the Andrew Mail and Bulletin Board System (AMS) has helped a great deal to create this situation. Departments without AMS have run their own mail systems and see heavy use, as well. With the end of the lifetime of the AMS in sight, Project Cyrus began to build a new campus mail system.

The Cyrus Electronic Mail Project is continuing to build a highly scalable enterprise mail system designed for use in a small to large enterprise environments using standards based technologies. The Cyrus technologies will scale from independent use in small departments to a system centrally managed in a large enterprise.

Visitors to this site may want to also view The Cyrus Wiki, which is likely to be updated more frequently.

This document gives an overview of the Cyrus IMAP server. The Cyrus IMAP (Internet Message Access Protocol) server provides access to personal mail and system-wide bulletin boards through the IMAP protocol. The Cyrus IMAP server is a scalable enterprise mail system designed for use from small to large enterprise environments using standards-based technologies.

A full Cyrus IMAP implementation allows a seamless mail and bulletin board environment to be set up across multiple servers. It differs from other IMAP server implementations in that it is run on "sealed" servers, where users are not normally permitted to log in. The mailbox database is stored in parts of the filesystem that are private to the Cyrus IMAP system. All user access to mail is through software that is using the IMAP, POP3, or KPOP protocols.

The private mailbox database design gives the server large advantages in efficiency, scalability, and administratability. Multiple concurrent read/write connections to the same mailbox are permitted. The server supports access control lists on mailboxes and storage quotas on mailbox hierarchies.

IlohaMail (pronounced: e-lo-ha-mail) is a light weight yet full featured multilingual webmail program that is easy to use and install.
It runs on a stock build of PHP, and does not require databases (although database support is available) or the IMAP library (it is powered by a custom IMAP/POP3 library).
Main features:
- Easy to install (only requires default build of PHP4)
- Light weight and fast
- Extensive multilingual capabilities
- Modular - Easily modifiable to accomodate different backends.
- Activity Logging
- Spam Prevention
- Multiple host/domain support
- Auto-appended Tag-Lines
- Optional MySQL backend for improved scalability and performance.
- External SMTP server support
- IMAP caching
- Theme support [development]
- POP3 & IMAP Support
- Send, receive, file, delete messages
- Create, rename, delete folders (requires IMAP)
- Send/receive attachments
- View images/html inline
- Full featured Contacts list
- Search messages (requires IMAP)
- User defined colors
- GPG/PGP support (requires GPG) [development]
- Multiple sender identities
- Spell checker (requires aspell)
- Calendar
- Bookmarks manager
- Customizable - Over 2 dozen user preferences
- Support for over 20 languages