Initial form sending, except for newsletter, is handled via formspree.io with a Gold account. As form submissions arrive there, Formspree sends out the received data to the email addresses setup as CC in [our site config](../_config.yml).
The Zapier email parser is a special mailbox provided by Zapier which receives form submissions from Formspree, parses the content of those emails and extracts data fields out of it. The parser as a source then provides the structured data to our Zapier tasks.
The Slack message never contains personally identifiable information. Name and email are not transmitted.
## Newsletter
Newsletter submissions are sent directly to MailChimp via their undocumented `jsonp` functionality, NOT the MailChimp API. We use a local copy of [ajaxChimp](https://github.com/scdoshi/jquery-ajaxchimp) to send the data. Library is old and jQuery but it just works across a wide range of browsers, even older ones.