Free sending and receiving software for linux

Secure Messaging is a Web-based, alternative mail system for sending and receiving messages.

Use secure messaging to send and receive messages from a alternative web-based mail system. Using the secure messaging system no actual mail is transmitted through any 3rd party servers.

Only an optional message notice is sent to the recepient, the user needs to visit the site in order to read the message.

Normal SMTP mail can hit multiple servers and can possibly be read, stored, or changed anywhere within the process.

Setup secure messaging on an SSL enabled website to enhance the privacy even more.

Gyach Enhanced (Gyach-E) and pY! Voice Chat. Gyach Enhanced is currently the most feature-rich Yahoo! client for Linux operating systems.

It is an unofficial fork of the original Gyach, and supports almost all of the features you would expect to find on the official Windows Yahoo! client: Voice chat, webcams, faders, nicknames, audibles, avatars, display images, and more.

Yet, it remains very light-weight and memory-friendly. Gyach Enhanced, pY! Voice Chat, and the Gyach-E Webcam Utilities all use Gtk-2 for their user interfaces (Gtk-2 2.0.6 or better required).

Gyach Enhanced is intended to be a deliberate departure from the growing trend of multi-protocol/multi-platform messaging and chat clients which often suffer from half-baked or non-existent support for major features such as voice, webcams, privacy, security, and spam control, and generally offer slower adoption of new protocol features that Windows users have access to almost immediately with each new Y! Messenger release. Gyach Enhanced is never intended to be a multi-protocol application (i.e., not intended for connecting to MSN, AIM, etc.) as I would rather use a client that handles one messaging system and handles it well, than a client that handles only the basics on several systems.

Gyach-E is about PROGRESS: Being among the first, not the last, to implement support for new features. Lately, Gyach Enhanced has been adopting new features at an alarming rate, as the development has not been bogged down with a need to rewrite/recompile code for Windows and other operating systems or a need to delay the addition of new features for fear of its affects on other protocols plugins. In other words: New features are added quickly because I do not have to worry if something will work on Windows or if the new addition will break MSN support...Gyach Enhanced just worries about Yahoo! on Linux: Thats it. "One protocol, one OS...done well.". Gyach Enhanced is also the first Yahoo application for Linux with support for the vast majority of the new features added to the Windows Y! Messenger 6: Display Images in the PM window, Avatars, Audibles, and Stealth Settings.

While other applications prefer to focus on things such as themeable smileys...Gyach Enhanced is focused on USEFUL features such as webcam support, voice chat, controlling spam (about 75-95% effective), and doing the best it can to prevent you from being booted, bombed, flooded, and stalked. Gyach-E is known to survive tons of different boot codes and is constantly being patched to defend against new ones as I find out about them. For example, when support for Audibles was added to Gyach-E, I also anticipated that people would eventually start using Audibles to flood people and send Audible spam, so I also implemented measures to help defend against these types of abuse.

This is part of the concept behind Gyach-E: Allow the user to enjoy the latest features while containing and minimizing any damage that can be caused by people abusing the new features. The program responds intelligently to boot attacks by temporarily shutting down sound events and dialog boxes to avoid X and sound card-related crashes, controlling the flow of incoming network packets, minimizing CPU usage during an attack, auto-ignoring users as necessary, monitoring and logging suspcious events, and sometimes, even booting the bot/person thats trying to boot you.

Together with pY! Voice Chat, the Gyach-E Webcam utilities, and a few light-weight plugins (including encryption support), Gyach Enhanced is the most advanced, feature-rich Linux client for Yahoo! thus far. It is the first (and, to my knowledge, the ONLY) Linux Y! client that supports both voice chat and webcams (sending and receiving.)

ASK is a spam killer. This program (Active Spam Killer, or ASK for short) takes an "Active" approach in solving the problem: Everytime an email is received, a message is sent back to the sender asking for confirmation. If that sender does not confirm the message, it remains queued for delivery. If the sender confirms, the message is delivered and removed from the queue. The "confirmed" senders will be added to your "whitelist" and will never be sent another confirmation. Messages from these emails will always be delivered immediately . You can also specify an "ignorelist" for emails that should be always ignored and a "blacklist" that will cause a nastygram to be sent back to the sender everytime an email is received.

There are many traditional approaches to avoiding spam. The most common approach is based on "content-filtering": a program that attempts to classify incoming mails based on their content. This works partially, but in reality, its somewhat easy to find ways to avoid it.

ASK takes advantage of the fact that most spammers use invalid or fake "From:" address in their messages. When a new message arrives and the sender is unknown, ASK sends a "confirmation message" back, informing the sender that the original message has been queued, pending confirmation. When the sender confirms (a simple reply), ASK delivers the original message and adds the sender to a "whitelist". Further messages from this sender will be immediately delivered. It is also possible to ignore messages based on specific criteria, like senders email, subject and so on.

The goal of ASK is to block Spam mail before it is delivered to your mailbox. As we know, filtering alone is not effective since many times Spam mail contains no detectable elements.

ASK should be invoked from .forward (or .procmailrc if you are using procmail). The incoming message should be piped to ASK, which will be in charge of doing the actual delivery.

When ASK receives an email, if first checks the email address against your "ignorelist". If the address is listed there, its ignored completely. Then, the message is checked against your "blacklist". If its there, a nastygram is sent back to the sender with something like "Please stop sending me emails" in the Subject line.

The real fun happens when an email comes from an unknown user (i.e, someone not in any of your lists). In this case, ASK calculates the MD5 checksum of the message + a secret MD5 key (configured during installation time). This number is sent as part of a "confirmation message" back to the user. If the user replies to it, the confirmation number (in the subject) is recognized, the message is dequeued and delivered. If the user does not reply, the message remains queued until its removed.

The program has some intelligence to deal with specific cases. For instance, if a mail is sent to a non-existing user, the error message from mailer-daemon is ignored. This avoids seeing lots of "invalid user" messages in your inbox.

Another interesting "twist" is that messages coming from your own email address are never trusted. If the spammer knows your address he could easily fake your own address as the From: line. Messages coming from you will be identified by a "mailkey", a piece of string you always put on your message by default (maybe a piece of your own signature). Note that this has the added side-effect of allowing any messages coming in reply to a message you sent to someone (as long as that person keeps your "mailkey" in its quoted reply, a practice common these days).

The program never deletes any messages. For instance, if you send yourself a message without your mailkey (a possible Spam), it will be saved in a "Junk" mailfolder (you can specify this folder during the configuration).

MSNre is a lightweight but powerful console-based MSN Instant Messenger clone. It has a easy-to-use curses BitchX-like user interface.
It has many features, including instant messaging, sending messages to cell phones, file transfer, complete contacts/groups management, email notifications, auto-away messages, netmeeting support, aliases, messages logging, event scripts, local contact list, multi-user chat support, ability to encode characters in the system locale, and much more.
Main features:
- Connection - Connect and login to the server, automatically reconnect when disconnected
- Status - Change own status (including Idle)
- Contacts - Download and show complete contact lists
- Friendly Names - Change your own friendly name
- Contact info - Show complete info about a contact
- Add/remove/rename - Add, remove and rename users and groups
- Block/unblock - Block and unblock other users
- Messaging - Send and receive messages
- Multi-user chat - Invite more users to existing chat sessions
- File Transfer - Send and receive files
- NetMeeting - Netmeeting/Gnomemeeting support
- Local contacts - Have contacts in a local contact list
- Ignore list - Ignore messages from people without blocking them
- Auto-away messages - Send auto messages while away
- Auto-idle - Automatically set Idle status
- Auto-accept files - Automatically accept incoming files
- Aliases - Create aliases for commands and contacts
- Messages logging - Log all the incoming/outgoing messages
- Event script - Run own script if an event appears
- E-mail notifications - Notify about unread, new e-mails
- Hotmail - Launch the browser to get to hotmail site
- Pager messages - Send messages on pager device (MSN Mobile)
- Phone numbers - Change own and show other users phone numbers
- Alerts - Receive MSN Alerts

Icmpenum sends ICMP traffic to potential targets on a network.
Introduction:
Host enumeration is the act of determining the IP address of potential targets on a network. This can be done in both layer 2 and layer 3. Icmpenum sends ICMP traffic for such enumeration. The ICMP packets supported are: Echo, Timestamp, Information and Netmask. Furthermore, it supports spoofing and promiscuous listening for reply packets. Icmpenum is great for enumerating networks which allow ICMP traffic.
Installation:
1. Install the latest libpcap (libpcap 0.4, ftp://ftp.ee.lbl.gov/libpcap.tar.Z).
2. Install the latest Libnet (http://www.packetfactory.net/libnet/).
3. Compile icmpenum as follows:
gcc `libnet-config --defines` -o icmpenum icmpenum.c -lnet -lpcap
4. Copy icmpenum to your fave directory and (as root) start enumerating.
Usage:
Running icmpenum -h gives you the following screen:
# ./icmpenum -h
USAGE: ./icmpenum [opts] [-c class C] [-d dev] [-i 1-3] [-s src] [-t sec] hosts
opts are h n p r v
-h this help screen
-n no sending of packets
-p promiscuous receive mode
-r receiving packets only (no
-v verbose
-c class C in x.x.x.0 form
-i icmp type to send/receive, types include the following:
1 echo/echo reply (default)
2 timestamp request/reply
3 info request/reply
-d device to grab local IP or sniff from, default is eth0
-s spoofed source address
-t time in seconds to wait for all replies (default 5)
host(s) are target hosts (ignored if using -c)
Examples:
Here are some example uses of icmpenum to enumerate hosts.
Example 1:
[Host1]# icmpenum 192.168.1.1 192.168.1.2
This will use the default of Echo packets to try and determine if
192.168.1.1 and 192.168.1.2 are up and running.
Example 2:
[Host1]# icmpenum -i 2 -v 192.168.100.100 192.168.100.200
This will enumerate the two hosts using Timestamp packets in
verbose mode.
Example 3:
[Host1]# icmpenum -i 3 -s 10.10.10.10 -p -v 192.168.1.1 192.168.1.2
This will enumerate hosts 192.168.1.1 and 192.168.1.2 using
Information packets with a spoofed address of 10.10.10.10, since our real address is 10.10.10.11 we use the -p option to listen for the replies.
Here are some more advanced uses of icmpenum.
Example 4:
Assuming Host1 is 6.6.6.6 and Host2 is 7.7.7.7, and that the network 1.1.1.0 has potential hosts to enumerate, we use the following two entries to enumerate with Information packets:
[Host2]# icmpenum -r -t 30 -i 3 -c 1.1.1.0
[Host1]# icmpenum -s 7.7.7.7 -i 3 -c 1.1.1.0
Host2 starts first in receive mode with a timeout of 30 seconds and starts listening for Information packets from the 1.1.1.0 network. Then Host1 starts sending spoofed packets with Host2 as the source address, sending exactly what Host2 is listening for. It should be noted that this is hardly stealthy, as logs at 1.1.1s site could have 7.7.7.7s address all over them, but the -r function is good for testing.
Example 5:
Assuming Host1 is 6.6.6.6 and Host2 is 7.7.7.7, and that Host2 can sniff traffic between 1.1.1.0 and 2.2.2.0, we use the following entries to enumerate the 1.1.1.0 network:
[Host2]# icmpenum -t 20 -n -p -i 2 -c 1.1.1.0
[Host1]# icmpenum -s 2.2.2.2 -i 2 -c 1.1.1.0
Host2 starts first with a timeout of 20 seconds, makes sure not to send the packets with the -n option, listens promiscuously for Timestamp packets from the 1.1.1.0 network. Host1 sends the exact packets Host2 is listening for with a 2.2.2.2 spoofed source address. Yes, one could simply replace the -n option in Host2s command line with -s 2.2.2.2 and do the same thing from one workstation, but were demonstrating a distributed concept.
Enhancements:
- I have added ICMP MASK (type 17 and 18) requests and replys. Simply use the -i 4 option on the command line, such as; icmpenum -i 4 -c 1.2.3.1 (sends ICMP MASK requests to the Class C range 1.2.3.1/24 and reports any system as.
- Due to the use of some older versions of Libnet and Libpcap. I can see problems for some people compiling this and hence have placed two statically linked versions within the tarball

eCorrei is a webmail system. This means it will allow you to access your POP email account via the web. It can do (nearly) all the things a normal email client can do: receiving mail, sending mail, replying, forwarding, etc. eCorrei is fast, simple and cross-platform.
Main features:
- Support for both POP3 and IMAP
- Receiving plain text messages, HTML messages, messages with attachments, HTML messages with attachments and HTML messages with inline images
- Sending emails using a SMTP server or the PHP mail function
- Replying and forwarding of emails
- Deleting emails, one or more at a time
- Autorefresh of Inbox
- Options for setting name and email address
- Parsing of URLs in messages
- Quickly send mails with smart maillinks in messages
- Add signature to mails
- Addressbook with groups to organize your addresses
- Multiple language support (user can choose language)
Enhancements:
- Fixed PHP version bug in check.php
- Now presets language based on browser settings
- Some CSS changes
- Changed config options to $cfg->...
- Added append option in config
- Converted all images to PNG
- Fixed signature problem
- Added Invert selection feature in Inbox
- Fixed some IE6 center problems
- Updated SECURITY
- Fixed inline imaging
- Added option to set timezone in Options
- Added UTF-8 support (receiving)
- JavaScript included in every page is in a .js-file now
- Magic quotes is disabled now
- Possibility to view message header
- New configuration option allows you to set refresh time of Inbox
- Fixed bug in autorefresh of Inbox
- New address parser in create script allows you to mail to entire groups of the addressbook at once
- Fixed bug with high priority
- Tweaked the icons a bit
- Fixed JavaScript problem in Inbox and Contacts
- Fixed CC and BCC problem

KMess program is a MSN messenger for KDE.
Main features:
- MSN Messenger protocol compatibility
- Font and font color support, including the ability to force contact messages to appear in a particular font and color.
- Full emoticon support, featuring a custom GPLed emoticon set and the ability to use different emoticon themes.
- File transfer support, both sending and receiving.
- Picture transfer support.
- Hotmail support, with new email notifications, the inbox count, and the ability to open Hotmail at the users inbox or at the composition page.
- The ability to disable and hide email information for accounts that dont use Hotmail.
- Support for multiple user profiles.
- Autologging, either at the setting page for from the commandline (with "kmess --autologin blah@hotmail.com" for example).
- A contact list that can organize contacts by group or by online/offline status.
- Groups show a count of the contacts online (i.e. "Friends (2/5)")
- The user can specify particular contact images and sounds to be displayed when a contact comes online or in a chat.
- The user can specify a name for a contact, overriding the contacts specified name.
- The user can choose on a contact-by-contact basis whether the user should be notified when a particular contact comes online or goes offline.
- KMess can show a contacts MSN profile, and open the MSN search pages.
- In addition to the usual user statuses of "Away" and "Busy" and so on, there is the status "Away with Autoreply" that will reply to contacts chat messages with a user-specified away message.
- The chat window has been redesigned with a new sidebar (which can be toggled with Ctrl+T) with an emphasis on contact images.
- The chat window notifies the user that a contact is typing by "glowing" the contacts image.
- Chats can be logged automatically and the chats ordered in subdirectories by day, week, or month, or not ordered at all.
- Chats can be configured to show timestamps when contacts send messages.
- A "compact" chat format can be used to remove extraneous line breaks and reduce the size of the chat.
- The chat window caption in the taskbar alternates between lower and upper case to inform the user of a received message when the window is not on top.
- Internationalization support, with translations in: English, Dutch, German, Italian, Portuguese, Spanish, Turkish, Chinese, French, Catalan, Arabic, Korean, Norsk, and Thai
- There is now a method, though not absolute, to tell if a contact is blocking you. If a chat is started with a contact that appears offline, you will be informed if the contact is offline or online and blocking you.
- NetMeetingGnomeMeeting and GnomeMeetingGnomeMeeting invitations are supported.
- Users can start as invisible rather than online.
- Users can have blank, unsaved passwords but retain user settings.
- Text can be formatted with /italic/, _underlined_, and *bold*.
- Groups can be reordered.
- You can show or hide offline contacts.
- Emoticons are shown in the contact list.
- Contacts can be dragged to move between groups and dragged into a chat to be invited to it.
- A background picture was added to the contact list.
Enhancements:
- This release fixes some critical issues in 1.5-pre1.
- The most important bugfixes are better support for direct file transfer connections and links in the chat window.
- There are also some nice improvements, like file transfer previews and "now playing" information.
- The chat window has some new features.
- Writing links as slashdot.org or dot.kde.org works as well.
- Its possible to disable the shaking effect of a nudge.

SyslogScan::Summary encapsulates a tally of how many bytes people have sent and received through sendmail.

SYNOPSIS

Use SyslogScan::Summary;
Use SyslogScan::DeliveryIterator;

my $iter = new SyslogScan::DeliveryIterator(syslogList =>
[/var/log/syslog]);
my $summary;
if (defined $DOING_IT_THE_HARD_WAY_FOR_NO_PARTICULAR_REASON)
{
# feed a series of SyslogScan::Delivery objects
$summary = new SyslogScan::Summary();
my $delivery;
while ($delivery = $iter -> next())
{
$summary -> registerDelivery($delivery);

# You would instead use:
# $summary -> registerDelivery($delivery,foo.com.$)
# if you only cared to get statistics relating to how
# much mail users at foo.com sent or received.
}
}
else
{
# slurps up all deliveries in the iterator,
# producing the same effect as the block above
$summary = new SyslogScan::Summary($iter);
}

print $summary -> dump();

use SyslogScan::Usage;
my $usage = $$summary{john_doe@foo.com};
if (defined $usage)
{
print "Here is the usage of John Doe at foo.com:n";
print $usage -> dump();
}
else
{
print "John Doe has neither sent nor received messages lately.n";
}