Sure, that would rely on a Joomla content event. You can find more information about Joomla content events below.
manual.joomla.org/docs/next/building-extensions/plugins/plugin-events/content/
Specifically you'll be using onContentAfterSave and to use a Joomla event in CB Auto Actions you'll need to prefix it with joomla_ giving joomla_onContentAfterSave. Since these are filtered by context you'll need an article context with is com_content.article. Below is the details for the onContentAfterSave event and what variables it contains.
manual.joomla.org/docs/next/building-extensions/plugins/plugin-events/content/#oncontentaftersave
This can all be put together using the below example.
Global
Triggers: joomla_onContentAfterSave
Type: Email
User: Automatic
Access: Everybody
Conditions
Condition 1
Field: Custom > Value
Custom Value: [var1]
Operator: Equal To
Value: com_content.article
Condition 2
Field: Custom > Value
Custom Value: [var3]
Operator: Equal To
Value: 1
Condition 3
Field: Custom > Value
Custom Value: [var2_catid]
Operator: Equal To
Value: CATEGORY_ID_HERE
Replace CATEGORY_ID_HERE with the id of the category you want this applying to. You can use an "In" condition to supply a comma list of category ids as well if you need more than 1 category. It should only apply to newly created articles due to the var3 ($isNew) check. Next just configure the rest of the email however you like.
krileon
