You can only delete a mailing if it hasn't been approved.Once approved, you will need to Cancel a Mailing to prevent it from sending.
How to Delete a Mailing
This action must be performed while viewing/editing a mailing.
Click
You do not have a valid <a href="https://apps.appf.re/me/mp/cloud?hosting=cloud&tab=overview">MultiExcerpt</a> app license.
Please sign up for a free trial or purchase a license through the <a href="https://apps.appf.re/me/mp/cloud?hosting=cloud&tab=overview">Atlassian Marketplace</a>.
toward the top right corner of the screen
Click Yes in the popup window
com.atlassian.confluence.content.render.xhtml.migration.exceptions.UnknownMacroMigrationException: The macro 'html-macro' is unknown.
