Workflow email integration

I have a workflow where a specific set of users will receive emails when there's an attachment for the list item. Its working fine but there users are getting too many emails.

Lets say there are 20 items with attachments so users are getting 20 emails. So is there any way to integrate the information in one single mail and send it once in a day?

I have similar requirement for both SharePoint 2010 and 2013 versions.

Please suggest