License cannot be activated as license could not be validated with the license server
Step-1: First check the issue is not due to TLS 1.2 connectivity
Step-2: Check proxy settings
You may be behind a proxy preventing direct connection with gearmage.com on ports 80 and 443.
In the following TWO files in the Program Files Gearmage program / installation directory,
MailAttachmentDownloader.exe.config AND MailAttachmentDownloaderService.exe.config
You can try to change the proxy line here:
<defaultProxy />
to
<defaultProxy enabled="true" useDefaultCredentials="true">
<proxy usesystemdefault="true" bypassonlocal="true" /> </defaultProxy>
OR
<defaultProxy>
<proxy
proxyaddress="http://[proxy address]:[proxy port]"
bypassonlocal="false"
/>
</defaultProxy>