Sylpheed 3.7.0 Build 1185 + Portable

ни разу не видел и не знал логины серверов, и где их брать?

The function to export the address book to CSV files was added.
'Nick Name' column was added to the address book.
Context menu was added to the search result of the query search dialog.
When attaching UTF-16 text files, they are automatically converted into UTF-8 now.
Show original From on the summary view if the display-name seems to be an e-mail address.
The bug that wrong reply target could be selected when the summary was sorted by the unread flag (#286).
Win32: the bug that Japanese characters were overlapped on printings with some font settings was fixed.
Win32: the bug that empty lines were not properly spaced on printings with some font settings was fixed.
Win32: OpenSSL was updated to 1.0.2n.

The feature to use multiple signatures in one account was added.
The edit group dialog of the address book was improved to allow multilple selection and display its available list with folder tree.
The menu 'Tools - Open configuration/attachments folder' was added.
Printing settings and page setup are now saved.
The Japanese manual was updated.
IMAP: SUBSCRIBE command is explicitly issued for a newly created folder by CREATE.
Unix: the search location of SSL certificates for OpenBSD was added (#222).
Win32: a notice about not removing user data in the installer was modified.
Win32: OpenSSL was updated to 1.0.2l.

New plug-in APIs for compose view were added.
Autotools scripts and documents were updated.

vmni, ну так дай ссылку, хватит умничать. Только источник, а не обменник.

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.
Improvements
Win32: Menus became more native-looking.
Win32: File dialogs were improved.
Win32: sylpheed.exe executable became DPI-Aware.
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.
Other changes
Hebrew translation was added.
Component updates
Win32: included third-party libraries were updated:</li>
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
Win32: dependency on libtiff was removed (GDI+ is used to support tiff images).
Bugfixes
Win32: System Icon issue when ran on Windows 7 (# 13, # 85)
Win32: Scroll jumping issue on text views when using Japanese IME
Win32: the bug that maximized state was unset on minimize was fixed.
Win32: the crash when linked with newer MSVCRT was fixed.
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.

TLSv1.1 and TLSv1.2 will be enabled for STARTTLS when OpenSSL 1.0.1 or above is used.
The regression which was introduced at 3.5rc when using Oniguruma was fixed.
Win32: libpng was updated to 1.4.18.
Win32: OpenSSL was updated to 0.9.8zh.

A fix for ARM architecture was made.
Some bugfixes and stability improvements were made.
Win32: more fix for the crash when linked with newer MSVCRT was made.
Win32: irresponsive text entries on the first display of the filter edit dialog were fixed.
Win32: included libiconv dll was replaced with the correct one, which fixes Japanese wave dash and fullwidth tilde conversion problem.

Ха, так она не портативная. И зачем такой клиент нужен, я что должен в свой десяток ящиков с чужих браузеров заходить, когда не дома!? Вообще убожество для домохозяек.

vmni, видимо не плохо улучшили, раз 100 мегобайт в архиве весит.

In this release, OpenSSL, libpng, libjpeg and libtiff library included in the Windows version were updated (including security fixes). Some bugfixes were also made.

The bug that wrote the first part of data if the message body in the IMAP4 responses didn't end with CR+LF was fixed (#84).
The crash when displaying HTML messages was fixed (#215).
Win32: the crash when linked with newer MSVCRT was fixed.
Win32: libjpeg was updated.
Win32: libtiff was updated.
Win32: libpng was updated to 1.2.53.
Win32: OpenSSL was updated to 0.9.8zg.
Win32: included SSL certificates were updated.

In this release, the OpenSSL library included in the Windows version was updated, and its security vulnerability was fixed.
The bug that POP3 remote mailbox feature didn't show error if local mailbox was inaccessible on downloading messages was also fixed.

This release fixes an important bug that would lose mails when local mailbox was inaccessible on POP3 receiving. All users who are using 3.4 are recommended to upgrade. 3.3.1 does not have this problem.