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Claimed by NGINX, Inc. Analyzed about 10 hours ago

NGINX [Engine-X] is an HTTP(S) server, HTTP(S) reverse proxy and IMAP/POP3 proxy server written by Igor Sysoev. It has been running on many heavily loaded sites, including Facebook, Zappos, Groupon, LivingSocial, Hulu, TechCrunch, Dropbox, Tumblr and WordPress.

20 lines of code

14 current contributors

2 days since last commit

875 users on Open Hub

Moderate Activity
I Use This



  Analyzed about 11 hours ago

Postfix is Wietse Venema's mailer that started life as an alternative to the widely-used Sendmail program. Postfix attempts to be fast, easy to administer, and secure, while at the same time being sendmail compatible enough to not upset existing users. Thus, the outside has a sendmail-ish flavor, but the inside is completely different.

230K lines of code

1 current contributors

23 days since last commit

762 users on Open Hub

Very Low Activity
I Use This



  Analyzed about 8 hours ago

Mutt is a small but very powerful text-based mail client for Unix operating systems. Though written from scratch, Mutt's initial interface was based largely on the ELM mail client. To a large extent, Mutt is still very ELM-like in presentation of information in menus (and in fact, ELM users will ... [More] find it quite painless to switch as the default key bindings are identical). As development progressed, features found in other popular clients such as PINE and MUSH have been added, the result being a hybrid, or "mutt." [Less]

105K lines of code

36 current contributors

about 22 hours since last commit

470 users on Open Hub

Moderate Activity
I Use This



  Analyzed 8 months ago

Evolution provides integrated mail, addressbook and calendaring functionality to users of freedesktop.org compliant desktop environments.

1.03M lines of code

98 current contributors

8 months since last commit

277 users on Open Hub

Activity Not Available
I Use This



  Analyzed about 13 hours ago

Dovecot is an open source IMAP and POP3 server for Linux/UNIX-like systems, written with security primarily in mind.

442K lines of code

15 current contributors

9 days since last commit

260 users on Open Hub

Very High Activity
I Use This
Licenses: BSD-3-Clause, lgpl21, mit



Claimed by KDE Analyzed about 12 hours ago

The KDE Kontact Personal Information Management suite unites mature and proven KDE applications under one roof. Thanks to the powerful KParts technology, existing applications are seamlessly integrated into one. The components of KDE Kontact are tailored to work well with each other. This results ... [More] in features like intuitive drag-and-drop between appointment handling, task lists and contacts. KDE Kontact supports various groupware servers. When using these servers your workgroup has access to features like shared email folders, group task lists, calendar sharing, central addressbooks and meeting scheduling. [Less]

3.84K lines of code

7 current contributors

6 days since last commit

150 users on Open Hub

Moderate Activity
I Use This



  Analyzed about 1 hour ago

Exim is a message transfer agent (MTA) developed for Unix systems connected to the Internet. It is similar to Smail 3, but expands on Smail features.

127K lines of code

12 current contributors

4 days since last commit

103 users on Open Hub

Moderate Activity
I Use This



  Analyzed almost 4 years ago

Fetchmail is a full-featured, robust, well-documented remote-mail retrieval and forwarding utility intended to be used over on-demand or permanent dynamic-address TCP/IP links (such as SLIP or PPP connections). It supports every remote-mail protocol now in use on the Internet: POP3, IMAP4r1, ETRN ... [More] , and ODMR, all with various authentication variants, and TLS/SSL security with certificate verification. Fetchmail retrieves mail from remote mail servers and forwards it via SMTP, LMTP, or to a local delivery agent. Mail can then be read by normal mail software such as mutt or alpine. This setup allows all your system MTA's filtering, forwarding, and aliasing facilities to work just as they would on normal mail. [Less]

32.4K lines of code

1 current contributors

over 4 years since last commit

97 users on Open Hub

Activity Not Available
I Use This



  No analysis available

Sendmail is a remarkably flexible program, supporting many kinds of mail transfer and delivery including the overwhelmingly popular SMTP.

0 lines of code

0 current contributors

0 since last commit

95 users on Open Hub

Activity Not Available
I Use This
Mostly written in language not available
Licenses: sendmail



  Analyzed about 3 years ago

Gnus is a mail- and news-reader that is incorporated into GNU Emacs. Gnus is independently developed, and is frequently merged into GNU Emacs.

128K lines of code

24 current contributors

about 3 years since last commit

81 users on Open Hub

Activity Not Available
I Use This