When auto hashtags are enabled, dlvr.it will include your RSS items' category tags as hashtags (up to a max of 5 per post).
To enable auto-hashtags:
1) Go to your Socials tab
2) Click on the Twitter or Facebook account on which you would like to add auto-hashtags
3) Click on Advanced
4) Click on the Auto-hashtag dropdown menu and configure your auto-hashtag placement
From here you can select the placement of the hashtags, and set the limit for number of tags per post.
We currently support auto-hashtags for Twitter and Facebook destinations.