Proxy setting doesn't work as expected

[martinl88]

I have a setup where outgoing traffic has to go through a proxy.
Tried setting proxy address using the applicationSettings parameter...

<applicationSettings>
   <LetsEncrypt.ACME.Simple.Properties.Settings>
      <setting name="Proxy" serializeAs="String">
         <value>http://10.168.24.10:3128</value>
      </setting>
   </LetsEncrypt.ACME.Simple.Properties.Settings>
</applicationSettings>

...but it seems to work only half way. Process fails half way when it tries to save certificates as files.
Log: le_fail.txt

Setting proxy system wide (via Control Panel Internet Options) results in successful request.
Log: le_success.txt

Client version: 1.9.8.4
OS: Windows Server 2008 R2 (IIS 7.5) and Windows Server 2012 R2 (IIS 8.5)

[WouterTinus]

That's a bug, but it should be fixed in the next release!