Sylpheed 3.5.0 Has Been Released

As you may know, Sylpheed is an open-source lightweight and keyboard-orientation e-mail client written in GTK+2. Having an intuitive interface, it has all the features of a modern email client.

The latest version available is Sylpheed 3.5.0, which has been recently released, bringing the below Linux-specific changes:

New features:

  • Windows / widgets are now adjusted to their optimal sizes by reference to system DPI value.
  • Fade effect was added to the notification window.
  • The option to specify startup online mode was added.



  • Mbox locking became NFS-safe (#202).
  • Sylpheed.desktop file was updated.
  • The original file names of attachments are kept when opening them, and shorter suffixes are added in the case they conflict.
  • TLSv1.1 and TLSv1.2 will be enabled for STARTTLS when OpenSSL 1.0.1 or above is used.

Component updates:

  • GTK+ 2.24.23
  • GLib 2.38.2
  • GDK-Pixbuf 2.30.7
  • Pango 1.36.3
  • Cairo 1.10.2
  • libpng 1.14.19
  • GPGME 1.4.3
  • OpenSSL 0.9.8zh



  • A bug that reorder of filter rules by DnD was not saved was fixed.
  • A fix for ARM architecture was made.
  • Other bugfixes and stability improvements were made.



Installation instructions:

Up to date Sylpheed packages are available via some third party PPA, so installing the software on Ubuntu systems is easy. You just need to add the PPA to your system, update the local repository index and install the sylpheed package:

$ sudo add-apt-repository ppa:klaus-vormweg/sylpheed
$ sudo apt-get update
$ sudo apt-get install sylpheed

Optinal, to remove sylpheed, do:

$ sudo apt-get remove sylpheed

The installation instructions should work on all the supported Ubuntu systems and their derivatives: Ubuntu 16.04 Xenial Xerus, Ubuntu 15.10 Wily Werewolf, Ubuntu 14.04 Trusty Tahr, Linux Mint 17.x, Elementary OS 0.3 Freya and other Ubuntu derivative systems.

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