If you would like to encourage members to post to the club website blog, the best way to start them out is to promote them to the Contributor security level. This allows them to submit blog posts for review by an editor or administrator, who can then publish them. See: Understanding User Access Levels in WordPress for Toastmasters.
You might expect that WordPress would send me editors and administrators a notification whenever one of these posts is submitted, but it turns out that’s not built into the base WordPress system. As of the July 22 update, it is built into the WordPress for Toastmasters software (specifically, the RSVPMaker for Toastmasters plugin).
On the Settings page for Toastmasters options, there is now a field where you can enter the email addresses of one or more contacts.
Each of those email addresses will get a copy of a basic notification like this, pointing to the page where you can view and edit the pending post. You can also reply to this message with questions for the author.