Sylpheed 3.4.2 / 3.3.0beta2

( 177 reviews )
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Sylpheed, Mail User Agent based on GTK+.

Updated by Editors on Wednesday, June 11, 2014.
Sylpheed Screenshot

Sylpheed is an e-mail client (and news reader) based on GTK+, running on X Window System, and aiming for: Quick response, Graceful, and sophisticated interface, Easy configuration, intuitive operation, Abundant features. The appearance and interface are similar to some popular e-mail clients for Windows, such as Outlook Express, Becky!, and Datula. The interface is also designed to emulate the mailers on Emacsen, and almost all commands are accessible with the keyboard. The messages are managed by MH format, and you will be able to use it together with another mailer based on MH format (like Mew). You can also use fetchmail or/and procmail, and external programs on receiving (like inc or imget).

Requirements: Linux, or other POSIX compliant UNIX like OS and GTK+ 1.2.6

Latest releases :

3.4.2 [Stable]
June 11, 2014
3.3.0 [Stable]
Interface for attachments and import / export feature was improved.The libtiff library included in Windows version has been updated to fix an security issue. Other improvements and bugfixes have been also made

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Contact Information

Author / maintainer:
Hiroyuki Yamamoto
Web site:

User reviews

Displaying 8 of 10 comments.
Sylpheed 2.7.0
By Anonymous on Monday, July 20, 2009.

If you like Sylpheed you should also have a look at Claws-mail, previously the bleeding edge project of Sylpheed but now forked off as a totally separate project. regards Martin.

Things I love about Sylpheed
By Anonymous on Wednesday, April 5, 2006.

Things I love about Sylpheed:

-being able to switch from one identity to another (work email, home email, etc) very quickly and easily -no HTML in sight! Yay! I hate HTML mail. -ability to add custom headers, or not. -the fact that Sylpheed doesn't insist on including a mail header saying what program was used to create the email. (Unless I enable custom headers. Rats that Sylpeed does identify itself then.) -ability to use PGP with the program -ability to download program in .zip format, unzip to a folder, and then use immediately - Windows installer available to those who need it, but not forced upon all. Yay! -program works when all .dll files are in Sylpheed folder along with .exe file. No need to clutter Windows registry -signature files stored as plain text within Sylpheed folder. -ruler to show how many characters in a line -ability to let text wrap, or click one button and have fixed-length lines of an appropriate length -ability to change character encoding. And one of the encoding schemes to choose from is Unicode. Yay! -Sylpheed is available for Linux and Windows. Very handy, as I'm now using a Windows machine but plan to move to Linux soon. -program released under GNU General Public License. Most reassuring.

I've only just started using this program, but already like it better than TheBat, Eudora, Outlook, etc. It's the best GUI-based email program I've come across so far on the Windows platform. When it comes to things I like in an email program, the only thing that rivals Sylpheed is Pine, and that's a whole different kind of beast anyway.

Thank you for this excellent program!.

Nothing compares
By pldaniels on Tuesday, May 13, 2003.

I tried almost every other X based MUA... then I found Sylpheed. Short of when I found PHP (after years of writing CGI scripts in C) I don't think I've been so overwhelmed.

Sylpheed is (as someone else said) a pinnacle example of what good coding can produce.

Sylpheed - All GUI dev should be like this!
By Anonymous on Friday, October 18, 2002.

Fast to start, easy to use. Just shows that there can be efficient GUI development - if only it could all follow Sylpheed's example.

Chris Drabble England.

As far as MUA's go...
By Anonymous on Friday, August 30, 2002.

You've tried the rest, Sylpheed's the best !!! Not much more to say than that.

And html??
By Anonymous on Wednesday, May 15, 2002.

Hi!! I use Sylpheed, also as newsreader, and I think it's beautiful!! :-)) But when will it be possible to read email in html format??


Ps: please, forgive this bad english wrote by an italian... :-)).

Real High Feature:Weight Ratio
By Anonymous on Thursday, January 24, 2002.

The best thing about Sylpheed is that despite being lightweight, it's really feature rich. The similarity of the interface with some of the most popular mail clients is an added benefit. 5 Star Deserving, indeed.

By Anonymous on Friday, November 23, 2001.

When I discovered Sylpheed last spring it was already the best MUA for my limited needs. I've been impressed with it's rapid development and now it has many high-end features while still being very fast.

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