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Internet - Email Clients (14)

Mozilla Thunderbird, Portable Edition v60.2.1 Updated

billon on 4 Oct 2018
  • 125MB (uncompressed)
  • Released on 4 Oct 2018
  • Suggested by Eu Gene Lim

Mozilla Thunderbird is a skinnable, feature-rich email, calendar, task and instant messaging client with support for plugins and many protocols. It comes with advanced search tools, message filtering, Bayesian spam detector, built-in spell checker, mailbox compression and many more. Program features can be extended with add-ons, including a specialized version of email encryption tool GPG.

Email protocols include SMTP, POP3, IMAP4, NNTP and RSS and chat support for IRC, Twitter, XMPP and Google Talk.

Mozilla Thunderbird, Portable Edition is a special build licensed by Mozilla. Alternatively, X-Thunderbird is also available.

System Requirements: Win7 / Win8 / Win10 / Wine
Writes settings to: Application folder
Stealth: ? Yes
Unicode support: Yes
Path portability: Automatic relative path (eg. ..\..\personal\work.doc)
License: Launcher: GNU GPL, Thunderbird: MPL
How to extract: Download the self-extracting EXE and extract to a folder of your choice. Launch ThunderbirdPortable.exe.
Similar/alternative apps: i.Scribe, Sylpheed
What's new? See:
Latest comments
webfork on 2018-08-13 14:17

AndTheWolf: confirmed.

CornHolio the Gringo on 2018-08-13 18:23

You need to update the GIF.
Its out of date...

webfork on 2018-08-16 13:49

CornHolio: updated

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POP Peeper v4.5.2 Updated

billon on 11 Sep 2018
  • 5MB (uncompressed)
  • Released on 7 Sep 2018
  • Suggested by falrob

POP Peeper is an email notifier that alerts you when you have new email on any of your accounts. You can also send emails using SMTP or through Webmail directly from POP Peeper.

To enable secure connections, see forum instructions.

System Requirements: Win2K / WinXP / Vista / Win7 / Win8 / Win10
Writes settings to: Application folder
Stealth: ? Yes
Unicode support: Yes
License: Liteware
How to extract:
  1. Download the ZIP package and extract to temporary folder
  2. Delete the folders Pro and Themes and the files PPconvert.exe and PpHelper.exe
  3. Launch POPPeeper.exe
  4. When prompted to "Store Data in my Application Data folder", select Store Data for Portability and then uncheck Run POP Peeper at Windows Startup
What's new? See:
Latest comments
webfork on 2016-04-02 18:17

billon: just ran a check based on our listed instructions and it seems fine. Plz post what you're seeing in forums.

webfork on 2016-10-25 22:11

Thanks Orca and billon. Updated.

Ding-A-Ling on 2017-12-07 11:29

Version is now available.

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i.Scribe v2.2.14 Updated

billon on 26 Aug 2018
  • 10MB (uncompressed)
  • Released on 15 May 2018
  • Suggested by Pixador

i.Scribe is an email client with an integrated contact database and calendar, supporting SMTP, POP3 and IMAP4. Security features include Bayesian spam filter, HTML controls and attachment protection.

Cross-platform with clients available for Mac and Linux. Note that the program is limited to one email account and 5 user-defined filters, which are available in it's commercial version.

System Requirements: WinXP / Vista / Win7 / Win8 / Win10
Writes settings to: Application folder
License: Freeware
How to extract: Download the installer and "install" to a folder of your choice. Launch Scribe.exe.
Similar/alternative apps: Mozilla Thunderbird, Sylpheed, Pegasus Mail
What's new? See:
Latest comments
CornHolio the Gringo on 2017-07-14 19:46

Important to know:
i.Scribe Free only support one (1) mail account.

Falaffel on 2017-07-26 21:38


I tried zo use I.Scribe vie Imap with my Mailbox. Unfortunately the Imap functionality of I-Scribethis seems to be completely not in a good sape. The performance when synchronizing folder or moving/deleting Emails is very, very slow.
Could it be I am making anything wrong or the actual build has some bugs?

webfork on 2017-07-27 04:07

@Falaffel: I'm not an i.Scribe user so you probably want to try contacting support about that. Failing that, you might try listing something in our troubleshooting forums to see if someone has run into a similar issue.

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Pegasus Mail v4.73

billon on 11 Jun 2018

Pegasus Mail is an email client that supports multiple POP3/IMAP4 accounts, HTML email, rule-based and Bayesian spam filtering, multiple identities etc. It also includes special support for Novell NetWare.

System Requirements: Win2K / WinXP / Vista / Win7 / Win8 / Win10
Writes settings to: Application folder. It does create a number of registry entries during operation for the purpose of Windows DDE (Dynamic Data Exchange). You can read WINPMDDE.TXT for more information.
Unicode support: Yes. With Unicode fonts selected.
License: Freeware
How to extract:
  1. Download the installer and extract to a temporary folder
  2. Copy the contents of {tmp} to a folder of your choice and launch winpm-32.exe
  3. When you run it for the first time, specify that you want to use it in "single-user" mode
  4. When prompted, save emails in a relative directory instead of a full path as suggested by the wizard (e.g. mail rather than z:\pegasus\mails)
Similar/alternative apps: Sylpheed, Thunderbird
What's new? See:
Latest comments
Checker on 2014-04-02 17:03

@ Craunch: Thanks ... and updated ;)

Bruce on 2014-04-03 12:13

I've been a satisfied Pegasus Mail user for 15+ years.

smaragdus on 2014-04-03 22:29

Before Pegasus Mail didn't save sent attachments, has this changed?

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Sylpheed v3.7

billon on 31 Jan 2018
  • 27MB (uncompressed)
  • Released on 31 Jan 2018
  • Suggested by ashanker

Sylpheed is a fast email and news client, with support for SMTP, POP3, IMAP4 and NNTP. It handles multiple mail accounts, threaded display, junk mail filtering, security (SSL/TLS), search, etc. Automatically displays mail in threaded (organized by subject) format and integrates easily with Gmail.

Alternatively, X-Sylpheed and Sylpheed Portable are also available.

System Requirements: Win7 / Win8 / Win10
Writes settings to: Application folder
Stealth: ? Yes
Unicode support: Yes
How to extract:
  1. Download the ZIP package and extract to a folder of your choice
  2. Do one of the following:
  • Rename sample-sylpheed.ini to sylpheed.ini and data will be saved to the subfolder config
  • Launch Sylpheed.exe

  • Create an empty subfolder called profile in the application folder and launch the program using sylpheed.exe --configdir profile
Similar/alternative apps: Mozilla Thunderbird, i.Scribe, Pegasus Mail
What's new? See:
Latest comments
hamasaki on 2014-06-28 04:06

I recently moved away from Thundebird after 10 years use because everytime they update it, it breaks something or it runs slower. Slypheed is excellent. Its fast and reliable and doesn`t render html, which is exactly what I need.

hamasaki on 2014-06-28 04:10

@lux Maybe this was an earlier version? Now it stores all the data within the app folder, so portable.

domestique on 2015-12-17 23:20

@Kea: Thanks for the warning re. non-encrypted password storage. It's the same reason I ditched filezilla.

Not encrypting one's account info is lame for otherwise well thought out software.

Bye bye Sylpheed >.

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Bitmessage v0.6.2

smaragdus on 3 Mar 2017
  • 28MB (uncompressed)
  • Released on 1 Mar 2017
  • Suggested by smaragdus

Bitmessage is a secure messaging system functioning like a peer-to-peer email service. The decentralized program resists tracking and includes encrypted connections, blocklist, channels, subscriptions, and any number of addresses can be created and discarded as needed. Messages sent via the network have a required expiration date of 28 days or less and are text-only.

Supports unlimited accounts and multiple instances.

Cross-platform with clients available for Mac, Linux, and FreeBSD.

System Requirements: WinXP / Vista / Win7 / Win8 / Win10
Writes settings to: Application folder: keys.dat
Stealth: ? No. Writes to \AppData\Roaming\PyBitmessage and writes some Trolltech registry entries
Unicode support: Yes
License: MIT (source)
How to extract:
  1. Download Bitmessage-[version].exe to a folder of your choice
  2. Optionally, rename the file to remove [version] numbers
  3. Launch Bitmessage.exe
  4. From the Settings menu, select Settings and check Run in Portable Mode

To generate a new address, click New Identity
Similar/alternative apps: Isotoxin
What's new? See:

nPOPuk v3.03

Checker on 2 Oct 2014

nPOPuk is lightweight yet feature-rich e-mail client. Features include multiple saveboxes, additional mail filtering options, basic viewer for HTML-only messages and option to send them to an external program (web browser), option to quote only portions of a message when replying/forwarding, etc.

System Requirements: WinNT / Win2K / WinXP / Vista / Win7
Writes settings to: Application folder
Stealth: ? Yes
Unicode support: Yes. Version available.
License: LGPL
How to extract: Download the ZIP package and extract to a folder of your choice. Launch nPOPuk.exe.

Version with SSL available.
What's new?
  • 3.03 adds a little box in the main window to filter the displayed messages. Click in the box where it says "Filter:" and then type; the program will display only messages that match that string, in either the Subject or From column. I found similar functionality in Thunderbird to be very useful in quickly finding a message from a certain sender in a large mailbox.
Latest comments
orchus on 2014-05-05 03:52

@webfork: posted "To use WebMail in nPOPuk v2.16, easily" to nPOPuk UpDate forums & re-posting comment replies @Sam & @longtime npop user ; don't know how to edit or delete comments, yet

orchus on 2014-05-05 03:53

@Sam: can make nPOPuk v2.16 NOT save messages from server after retrieval: File >> Global Options >> Recv Tab >> in lower Acct Messages Box: "Nothing Saved"

@longtime npop user: not keyboard friendly, but can change sort options by: Alt-F >> O (for Global Options) >> Shift-Tab >> (once on Global Options tabs use arrows to get to sort Tab) >> use Tabs and Space to change focused selection & make selection

Midas on 2014-05-05 09:17

@Orcus: since it is now duplicated to the forum topic, you could delete that long post of yours by clicking in the garbage bin icon to the right -- after copying and pasting it to an amended new comment with the forum URL, for example...

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40tude Dialog v2.0.15.84

Checker on 5 Aug 2014

40tude Dialog is multi-server, multi-threaded email/newsreader with Unicode character support. It supports multiple servers (POP3/NNTP) and identities, has filtering/scoring support, integrated email functionality and binary support (including support for multiparts).

Functional on 64-bit systems.

System Requirements: Win2K / WinXP / Vista / Win7
Writes settings to: Application Folder.

It only writes to Windows registry if you register it as default news/email reader, but the application will work without them.
Stealth: ? Yes
Unicode support: Yes
License: Free for Non-Commercial Use
How to extract:
  1. Download the 40tude Dialog Installer (, unzip, and then extract to a temporary folder
  2. The application is in the {app} folder
  3. Download Dialog.exe update ( and extract to the same folder (replacing dialog.exe with an updated/newer version)
  4. Launch dialog.exe

Optionally, delete unnecessary language files (locale folder).
Latest comments
orchus on 2012-03-24 22:41

.. .. .. .. ... .. .. .. ..
Old dead Site:
New working WebSite:
3.89Mb Zip:
.. .. 4d2b38.exe is installer
also at CNET:
.. ...
current version:
can be installed to USB (see FAQ):
.. .. ..
(From FAQ)
.. .. . ..
on installation writes registry keys:
HKLM\SOFTWARE\Clients\Mail\40tude Dialog
HKLM\SOFTWARE\Clients\News\40tude Dialog
HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\App Paths\dialog.exe
.. .. .. ... ..
.. .. ... .. ..
If set Dialog as default reader, adds:
.. .. .. . . .. . .
Dialog works without problems without any reg keys.
.. . .. ..
first 2 reg keys: let Dialog show on IE "Programs" tab, so it can be set as default reader
.. .. .. . .
third entry: leaves path, so other programs find it. Start->Run "dialog", will use path in this reg key

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Popcorn v1.99 update 3

Checker on 5 Aug 2014

Popcorn is a text-only email client with SMTP/POP3 support. It handles attachments, but does not render HTML emails or display inline images, which means it is immune to most HTML viruses/scripts/trojans. It supports multiple email accounts, SSL and APOP. It is useful for cleaning up POP accounts, removing spam, unwanted mail, large attachments etc.

Note: Developer has ended work on the project - linking to entry (thanks Baas).

System Requirements: WinXP / Vista / Win7
Writes settings to: Application folder
Stealth: ? Yes
Unicode support: No
License: Freeware
How to extract: Download the ZIP package and extract to a folder of your choice. Launch popcorn.exe.
What's new? 1.99 update 3 - 21-August-2012

  • Fixed an issue introduced in release 1.99 that caused mail sending to fail if the SMTP server supported the CRAM-MD5 authentication method.

1.99 update 2 - 06-July-2012

New features:
  • Added support for TLS encrypted SMTP communication via the STARTTLS command making Popcorn compatible with mail servers that require it like Hotmail. TLS can be turned on in the the "Tools" -> "Email Accounts" dialog "Identity & Servers" tab by checking "Use SLL / TLS". When enabled, TLS encryption will be used if the server supports it for all ports except 465 which uses SSL.

1.99 update 1 - 29-June-2012

New features:
  • Added support for attachment forwarding if the selected mail has any downloaded attachments. You will now be asked if you want to forward them, and if you choose yes, they will appear in the mail editor "File Attachment" dialog as usual.
  • Added an "Open File Location" item to the the mail editor "File Attachment" dialog context pop-up menu that will open an explorer window with the selected file attachment location + highlighting the file.
  • Added support for column sorting in the mail editor "File Attachments" dialog (by path or size).

  • The toolbar combo box edit control for setting the "Number of latest mail to download" did not respond to Delete and Backspace keyboard events because they got eaten by the main window accelerators. They are now intercepted before the accelerators kick in, so the keys should now work as expected (i.e. text can be deleted). Also updated the same control to only accept numerical input.
  • Fixed a very obscure and probably 10+ year old bug that in very rare cases would reset changes done to account settings outside of the "Tools" -> "Email Accounts" dialog if it is opened and Cancel or Close (Esc) is selected.
Latest comments
killingtime on 2016-09-16 17:59

Couldn't get this to work with Hotmail (Sept 2016)

Hotmail needs SSL for upload and download. The program doesn't come will the SSL libraries but you can download and install them on the local computer from OpenSSL.

Got upload working with OpenSSL (32bit light ver) even though I'm on 64 Win7. POP3 wouldn't connect....using port 995 Popcorn listed SSL support as available from the about menu too. Could be that OpenSSL was complaining about missing C++ libraries at install (you can download that too) but that kind of misses the point for me. If you've got to install a load of software on the local computer to get the mail client to work then it's not really portable.

Anyone get this working with Hotmail?

computernerd on 2017-01-08 15:25


Because Popcorn is a 32bit application, you need the 32bit DLLs.
OpenSSL doesn't provide binary files but has some respective links. There's a portable version as well that is simply to be unzipped.

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Koma-Mail v3.83

webfork on 19 Mar 2017
  • 7MB (uncompressed)
  • Released on 2 Aug 2014
  • Suggested by Matthias Koch

Koma-Mail is a multi-user email client with support for IMAP/POP3/SMAP/WebDAV. It supports HTML emails and inline attachments and can also be used as a RSS newsfeed reader. Comes with built-in spam filter and a JavaScript/ActiveX blocker.


  • The author has stopped development and warns against possible unresolved security issues.
  • It has been reported that Koma-Mail displays a donation dialog once in a long while.

System Requirements: Win95 / Win98 / WinME / WinNT / Win2K / WinXP / Vista / Win7
Writes settings to: Application folder
Stealth: ? Yes
Unicode support: Yes
License: Nagware (nags you to buy it a few times a year)
How to extract: Download the ZIP package and extract to a folder of your choice. Launch Koma_Mail.exe.
Latest comments
Technomancer on 2014-12-08 19:59

Hi Kea, I just took a look at Koma-Mail v3.83 and I can't find ANY obvious way to switch the ONLINE mode on or off. I downloaded the user manual, (web pages), and can find 2 references to it but no means of doing it. I also sent an email 'Koma-Code' but haven't had a reply as yet.

Still, it seems to be working anyway.

Technomancer on 2015-01-26 20:44

OK. I'm still using KomaMail and I still like it. I've set the 'Check Mail' time to 5 Minutes but it does't seem to automatically check at all.
If anyone CAN contact the author I think Komamail is well worth continuing to develop it and with the feedback from this forum it could be excellent.

Technomancer on 2015-01-26 20:55

I forgot. It's a shame that KomaMail isn't Open Source then someone could 'debug' and develop it. The athors web page doesn't seem to have been updated since 2004

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