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ActiveHorde-application[Utility & Helpers](/categories/utility)

horde/imp
=========

Webmail application

v7.0.0alpha18(11mo ago)2571424[3 issues](https://github.com/horde/imp/issues)[2 PRs](https://github.com/horde/imp/pulls)GPL-2.0-onlyPHPPHP ^8.1

Since Sep 4Pushed 1mo ago6 watchersCompare

[ Source](https://github.com/horde/imp)[ Packagist](https://packagist.org/packages/horde/imp)[ Docs](https://www.horde.org/apps/imp)[ RSS](/packages/horde-imp/feed)WikiDiscussions FRAMEWORK\_6\_0 Synced 1mo ago

READMEChangelog (1)Dependencies (88)Versions (58)Used By (0)

What is IMP?
============

[](#what-is-imp)

Contact:Contents

- [1 Obtaining IMP](#obtaining-imp)
- [2 Documentation](#documentation)
- [3 Installation](#installation)
- [4 Assistance](#assistance)
- [5 Licensing](#licensing)

IMP, the Internet Mail Program, is one of the most popular and widely deployed open source webmail applications in the world. It allows universal, web-based access to IMAP and POP3 mail servers and provides Ajax, mobile and basic interfaces with a rich range of features normally found only in desktop email clients, including attachments, spell-check, address books, multiple mailboxes, and multiple-language support.

This software is OSI Certified Open Source Software. OSI Certified is a certification mark of the [Open Source Initiative](http://www.opensource.org/).

[1 Obtaining IMP](#id1)
-----------------------

[](#1obtaining-imp)

Further information on IMP and the latest version can be obtained at:

>

[2 Documentation](#id2)
-----------------------

[](#2documentation)

The following documentation is available in the IMP distribution:

[README](README.rst):This file[LICENSE](http://www.horde.org/licenses/gpl):Copyright and license information[doc/CHANGES](doc/CHANGES):Changes by release[doc/CREDITS](doc/CREDITS.rst):Project developers[doc/INSTALL](doc/INSTALL.rst):Installation instructions and notes[doc/UPGRADING](doc/UPGRADING.rst):Pointers on upgrading from previous IMP versions[3 Installation](#id3)
----------------------

[](#3installation)

Instructions for installing IMP can be found in the file [INSTALL](doc/INSTALL.rst) in the `doc/` directory of the IMP distribution.

[4 Assistance](#id4)
--------------------

[](#4assistance)

If you encounter problems with IMP, help is available!

The Horde Frequently Asked Questions List (FAQ), available on the Web at

>

Horde LLC runs a number of mailing lists, for individual applications and for issues relating to the project as a whole. Information, archives, and subscription information can be found at

>

Lastly, Horde developers, contributors and users also make occasional appearances on IRC, on the channel #horde on the Freenode Network (irc.freenode.net).

[5 Licensing](#id5)
-------------------

[](#5licensing)

For licensing and copyright information, please see the file [LICENSE](http://www.horde.org/licenses/gpl) in the IMP distribution.

Thanks,

The IMP team

###  Health Score

53

—

FairBetter than 97% of packages

Maintenance69

Regular maintenance activity

Popularity31

Limited adoption so far

Community30

Small or concentrated contributor base

Maturity72

Established project with proven stability

 Bus Factor1

Top contributor holds 79.1% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Every ~83 days

Recently: every ~4 days

Total

53

Last Release

349d ago

Major Versions

6.2.27 → 7.0.0alpha12021-02-24

PHP version history (7 changes)6.1.5PHP >=5.3.0

6.2.0alpha1PHP >=5.3.0,<=6.0.0alpha1

6.2.19PHP ^5.3

6.2.21PHP ^5.3 || ^7

7.0.0alpha1PHP ^7

v7.0.0alpha8PHP ^7.4 || ^8

v7.0.0alpha14PHP ^8.1

### Community

Maintainers

![](https://www.gravatar.com/avatar/c943a083635c28520599075eaea7ede2d743b7697b76e84d6bdc37e52cc8249b?d=identicon)[yunosh](/maintainers/yunosh)

![](https://www.gravatar.com/avatar/c931cd02664859360478593450d6c473a05bb12b209dfacfc534cd13257cc7ef?d=identicon)[ralflang](/maintainers/ralflang)

![](https://www.gravatar.com/avatar/e4f6c6771993db2ed500959b42353f6cf6a2ca0406d9617f7ae680f4504faa4a?d=identicon)[horde](/maintainers/horde)

![](https://www.gravatar.com/avatar/a7767adb66b45f2f05bcd44d49bc4e67efacd9ce05b161ce2d481d5dd6af025c?d=identicon)[mrubinsk](/maintainers/mrubinsk)

---

Top Contributors

[![slusarz](https://avatars.githubusercontent.com/u/381003?v=4)](https://github.com/slusarz "slusarz (7674 commits)")[![yunosh](https://avatars.githubusercontent.com/u/379318?v=4)](https://github.com/yunosh "yunosh (1541 commits)")[![mrubinsk](https://avatars.githubusercontent.com/u/66822?v=4)](https://github.com/mrubinsk "mrubinsk (313 commits)")[![ralflang](https://avatars.githubusercontent.com/u/646976?v=4)](https://github.com/ralflang "ralflang (56 commits)")[![joaomachado](https://avatars.githubusercontent.com/u/143567?v=4)](https://github.com/joaomachado "joaomachado (32 commits)")[![wrobel](https://avatars.githubusercontent.com/u/10232?v=4)](https://github.com/wrobel "wrobel (31 commits)")[![midahp](https://avatars.githubusercontent.com/u/19747890?v=4)](https://github.com/midahp "midahp (12 commits)")[![TDannhauer](https://avatars.githubusercontent.com/u/6716033?v=4)](https://github.com/TDannhauer "TDannhauer (8 commits)")[![thomasjfox](https://avatars.githubusercontent.com/u/1146758?v=4)](https://github.com/thomasjfox "thomasjfox (7 commits)")[![boekhorstb1](https://avatars.githubusercontent.com/u/91957243?v=4)](https://github.com/boekhorstb1 "boekhorstb1 (6 commits)")[![selsky](https://avatars.githubusercontent.com/u/380337?v=4)](https://github.com/selsky "selsky (4 commits)")[![ctimoteo-fixeads](https://avatars.githubusercontent.com/u/14888729?v=4)](https://github.com/ctimoteo-fixeads "ctimoteo-fixeads (3 commits)")[![Wahnes](https://avatars.githubusercontent.com/u/61080908?v=4)](https://github.com/Wahnes "Wahnes (3 commits)")[![amulet1](https://avatars.githubusercontent.com/u/18431541?v=4)](https://github.com/amulet1 "amulet1 (2 commits)")[![cheese1](https://avatars.githubusercontent.com/u/6437726?v=4)](https://github.com/cheese1 "cheese1 (2 commits)")[![remicollet](https://avatars.githubusercontent.com/u/270445?v=4)](https://github.com/remicollet "remicollet (2 commits)")[![keysuck](https://avatars.githubusercontent.com/u/3840481?v=4)](https://github.com/keysuck "keysuck (1 commits)")[![bklang](https://avatars.githubusercontent.com/u/167131?v=4)](https://github.com/bklang "bklang (1 commits)")[![Schlue](https://avatars.githubusercontent.com/u/10165635?v=4)](https://github.com/Schlue "Schlue (1 commits)")[![jcdelepine](https://avatars.githubusercontent.com/u/29232395?v=4)](https://github.com/jcdelepine "jcdelepine (1 commits)")

### Embed Badge

![Health badge](/badges/horde-imp/health.svg)

```
[![Health](https://phpackages.com/badges/horde-imp/health.svg)](https://phpackages.com/packages/horde-imp)
```

###  Alternatives

[horde/horde

Horde base application

581.7k34](/packages/horde-horde)[horde/imap_client

IMAP client library

263.3k8](/packages/horde-imap-client)

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