IMP

IMP is a completely free, platform-independent and open source web-based application, a plugin for the Horde Groupware suite that provides an individual Internet Messaging Program, which allows users to access IMAP (Internet Message Access Protocol) and POP3 (Post Office Protocol 3) mail servers.

Features at a glance

Key features include multiple views, including dynamic (AJAX), thread view, mobile smartphone, and minimal (text-only), support for HTML signatures, address autocompletion, spell checking, folder subscriptions, flexible message search, support for managing shared IMAP folders via ACLs (Access Control Lists), as well as support for multiple identities.

Among other features implemented in the IMP application, we can mention HTML message composition via a WYSIWYG (What You See Is What You Get) editor, drag and drop attachment support in the WYSIWYG editor, email previews, email filtering, calendar and address book integration, mailbox quotas, message flags, full charset support, and IMAP folder support.

Additionally, the IMP application supports all the advanced functions of IMAP, supports downloading of attachments as ZIP archives, supports stripping of attachments from emails, supports previewing of attachments in the compose view mode, supports forwarding or multiple emails at once, supports PGP and S/MIME-based signatures and encryption for messages.

Getting started with IMP

IMP requires a working Horde installation, at least one POP3 or IMAP server, a SMTP or Sendmail server, as well as a PHP installation with support File Upload and OpenSSL. In addition, you should install the PEAR installer, which will be used for installing IMP.

Simply run the ‘pear install -a -B horde/imp’ command to install IMP with all optional dependencies, or run the ‘pear install horde/imp’ command to install IMP only with the required dependencies, or run the ‘pear install -a horde/imp’ command to install IMP with all binary dependencies. Then, proceed to the initial configuration http://www.horde.org/apps/imp/docs/INSTALL#configuring-imp.

What is new in this release:

• [mms] Fix regression where auto-saved drafts were not being deleted when cancelling compose message in dynamic view.
• [mms] Fix regression in parsing permission values (Bug #12812).
• [mms] Fix regression in showing non-available actions in dynamic mailbox view when ACL rules prevent them (Bug #12808).

What is new in version 4.3.11:

• This release fixes XSS vulnerabilities (CVE-2012-0791).

What is new in version 4.3.9:

• Fixed a regression for IMAP users without any sub-folders.

What is new in version 4.3.8:

• An XSS vulnerability in the Fetchmail configuration has been fixed.
• Other minor bugfixes and improvements have been made.
• The Estonian translation has been updated.

What is new in version 4.3.5:

• Signed messages are highlighted now depending on the signature verification.
• Hook examples for the address book preferences have been added.
• Some Javascript when using IE 8 has been fixed.
• The correct charset is used now when rendering inline PGP data.
• Spell checking in text mode for certain words in non-English locales has been fixed.
• Other minor bugfixes and improvements have been made.

What is new in version 4.3.3:

• This release fixes unescaped output in several scripts.
• In addition, it includes several minor bugfixes and improvements.

What is new in version 4.3.1:

• This release fixes unescaped output in a utility test script. In addition, deleted attachments are now marked as 'attachment' instead of 'inline' parts, iTip replies are sent using the regular outgoing email configuration, multipart/appledouble attachments are now always displayed, and prototype.js has been upgraded to 1.6.0.3.

What is new in version 4.3:

• The folder listing has been accelerated and better supports unconventional namespaces.
• Searching by size and a mailto: handler for Firefox 3+ have been added.
• Address autocompletion, address book popups, the quota system, and caching have been improved.
• CSRF tokens have been added to the Compose screen.
• PDF thumbnails are displayed if possible.
• Logging of forwarded messages has been fixed.
• Semicolons are allowed as address delimiters now.
• A Basque translation has been added.
• A large amount of bugfixes and performance/stability improvements have been made.

What is new in version 4.3 RC2:

• This release improves the address book popup interface and autocomplete, and improvements to caching and storage have been made.
• View selection other than the browser's default has been improved.
• An issue with entering the server name on login and an issue with uploaded attachment names when magic quoting is on have been fixed.

Requirements:

• Horde Groupware
• Ingo
• Turba