> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://docs.clientexec.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# Problems or error sending e-mail

Make sure the Support Email Address under **Settings** > **Support** > **General** and the Billing Email under **Settings** > **Billing** > **General** contain actual existing e-mails (valid e-mail), not the ones provided by default.