Free email clients software for windows

Mail Clients Inbox Senders Emails Extractor is a free program that will extract all senders emails addresses from your email client like Outlook and Outlook Express Inbox folders in to a text file and removes all list duplicates.

The Postman is a light-weight e-mail client designed specially for servers like Yahoo!
Features:
1. Selective Download
2. Selective Deletion
3. Auto POP authentication for SMTP

Secured eMail Reader software was designed with the recipient in mind, making the otherwise unsecure means of communication, secure for all users.
Implementing a security solution is important; however, it is equally important that the receiver doesn?t feel burdened by the process. Any Windows user can receive a secured email. They simply download a free Reader (similar to downloading the Adobe PDF Reader). With the Reader the recipient can open the secured email.
If the receiving party uses any of the supported email clients, they can reply secured for free as many times as they like. This means that you can have a secure communication with receivers without forcing them to buy any software or hardware. All secured emails sent also have a very easy to understand explanation regarding the secured email, including how to download the Free Reader and open the email.
Ease of use
Unlike PKI solutions that rely on you having a certificate before even you can even receive an encrypted email, Secured eMail lets the sender choose a one-time shared secret that works like a password for you as a recipient. It is called a "one-time shared secret" because it is only used once. After you have opened the first secured email for that contact, it will never be required again - Secured eMail will handle it for you. This is also where the power lies.
Technology
Secured eMail relies upon System SKG (Synchronous Key Generator) to handle the encryption keys that it uses. It is fully automated and doesnt require any interaction with the user. This is a completely transparent system and thereby not enforcing a new working routine for the user. All they do is click the "Send secured" button instead of "Send", and the email is secured and on its way to the recipient.
Main features:
- Send & Receive
With Secured eMail Reader installed, you can read secured emails that you receive through webmail, or any email client.
If you are using any of the fully supported email clients, Secured eMail will integrate itself with that and you will be able to also Send 10 FREE secured emails.
- FREE Reply!
If you are using any of the fully supported email clients, Secured eMail will integrate itself with that and you will be able to reply secured for FREE, without purchasing a license!
- Portability
Send/Receive secured emails wherever you are! Secured eMail works on any internet connection, regardless of where you are located.
- The difference is a button
Sending secured is just as easy as sending regular email. All you do is click "Send secured" instead of the Send. You can of course use your existing email account(s).

The Scopeware(TM) TNEF Decoder API allows developers to integrate support for Microsofts Transport Neutral Encoding Format (TNEF) into their applications. TNEF is a propriety format used by Microsoft Exchange and Outlook email clients when sending messages composed in rich text format (RTF). When Exchange sends a message to a Microsoft email client, it extracts formatting information and encodes it in a special TNEF block, and then sends the message in two parts: a text message with formatting removed, and the formatting instructions in the TNEF block. When the message is received, Microsoft email clients process the TNEF block and reformat the message. Most non-Microsoft email clients, however, cannot decipher TNEF blocks. To recipients using such clients, the TNEF block appears as a long sequence of hexadecimal digits, either in the message itself or as an attached file (usually named winmail.dat). Mirror Worlds Technologies, Inc. produced the Scopeware TNEF Decoder API (STDA) to solve this problem. Using the STDA, developers can decode (or extract) the TNEF block of an email message via the command line, API calls, or through Sun Microsystems Java Mail API. We have chosen to make this API available free of charge for personal and commercial use to anyone who cares to take advantage of it (see the license agreement in the download for the full terms and conditions of use).

Best selling email component. Feature-rich SMTP client for sending email, and POP3 client for reading email.
Main features:
- SMTP client for sending email.
- POP3 client for reading email.
- Supports POP3 SSL connections.
- Supports SMTP SSL connections.
- Send S/MIME signed and/or encrypted email.
- Read S/MIME signed and/or encrypted email.
- Export and import email to XML.
- Export ane import email to .eml (MIME) text files.
- Zip / unzip attachments in-memory.
- Check for email on servers.
- Verify POP3 / SMTP connections and login credentials.
- Secure SMTP authentication methods suppoted.
- Add attachments from files or in-memory data.
- Set connection and read timeouts.
- Set size limits when reading email.
- Delete email on the POP3 server.
- Copy email from a POP3 server without deleting.
- Fetch email headers.
- Get UIDLs of email on a server.
- Send email using Chilkat SMTPQ for background sending.
- Download email and sort based on date, sender, recipient, or subject.
- Set a bounce email address for handling bounces.
- Automatically handles international charset encodings.
- Can use file-based distribution lists.
- Send HTML email with embedded images.
- Send multipart/alternative emails with both HTML and plain-text bodies.
- Access attached message/rfc822 sub-parts.
- Acess attachment data in-memory.
- Set replacement patterns for mail-merge.
- Set return receipt.
- Set priority via the X-Priority header field.
- Add custom header fields.
- Add recipients as CC, To, or BCC.
- Save attachments to disk.
- Get attachment information: filename, size, etc.
- Return text file attachment data as an in-memory string.
- Get digital certificate information for signed/encrypted email.
- Enumerate over the header fields in an email.
- Find and unobfuscate the linked domain names in an email.
- Unobfuscate HTML email.

Columba is an Email Client written in Java, featuring a user-friendly graphical interface with wizards and internationalization support.
Its a powerful email management tool with features to enhance your productivity and communication.