The power of Blat with a user friendly GUI

Special thanks goes to: The user guinness from the portablefreeware.com forums - for helping to optimize the code for v1.3 and employ Blat's Unicode support.

All you have to do is launch LWBlat GUI_x64.exe or LWBlat GUI_x32.exe (see difference).

Windows 200X, Windows XP, Windows Vista, Windows 7-10

See more info

(additional arguments can be used in Options)

Blat is a command line e-mailer for Windows. It's portable, it's small and it pretty much has every sending option one could possibly want. Alas, this abandonware's lack of GUI left it in a very user unfriendly state. That is, until LWBlat GUI came along.

LWBlat GUI continues where Blat left off. It combines the power of Blat with a user friendly GUI.

Yes, it's a GUI frontend for Blat. The actual mailer is still Blat so be sure to download it too. Then either put LWBlat GUI in the same folder or define Blat's location in LWBlat GUI's preferences.

Yes, the sending process is properly done through Blat's DLL file.

Because it's still a separate program which doesn't even have to be in the same folder. But if it's important for you, download the PortableApps version.

No, because Blat itself doesn't support it. It also means you can't use servers that don't support insecure sending. If you like to convince Blat makers to support it, please help asking for OAuth support and for SSL support.

Not directly, because indeed most servers don't allow to use programs like Blat anymore. However, you can still use Blat as a simulator to try out every possible sending option. You can convince here Blat makers to add a direct simulation mode. Until then, that's why LWBlat GUI has a simulator (an embedded version of LWSMTP-Server, and of course external simulators can be used as well (like Papercut SMTP).
See What does it mean a simulator?

As this screenshot demonstrates, it means you can play around with blat's various settings, then simulate how your message would have been received in someone's inbox. It's needed because of Blat's inability to support modern public servers.
See Can Blat even be used nowadays if most servers block insecure mode?

Yes, no installation is involved. You need to run the main program, see usage.

There are no intentional differences. Even more so, the 32-bit version can still be used in 64-bit operating systems. But the 64-bit version is compiled specifically for such systems.

While the program is portable by design, this specific version is compatible with PortableApps (see forum discussion).

Because Blat is usually used for specialized jobs. If you need a full scale mailer, there's no point using Blat. With that said, you can use LWBlat GUI's Options to manually supply extra attachments.

You need to click Create and then Send. The Create button would create a command line to be delivered to Blat. LWBlat GUI would try to make sure the command is technically valid. Once you click Send, LWBlat GUI would interpret Blat's numeric result code.

If you leave this field alone, it would be your computer's name on your LAN. It is a required e-mail header. Blat is about the only mailer in the world that lets you anonymize it.

LWBlat GUI lists some basic charsets. The last item in the list lets you enter any additional charset you like. Your custom choice would be kept in your settings until you change to another charset.

You can submit a feature request.

Only if you want to store the command line and use it in other computers with a different folder structure.

Otherwise, every path setting can be a relative path and even use environmental variables. This makes LWBlat GUI even more portable.