A signature can be added to each email you send through Muck Rack by editing your Account Settings.
Step 1: Go to your Account Settings
Step 2: Fill out the Email Signature field
Step 3: Click Save
You can utilize the toolbar in the Personal signature box to further customize your signature like adding images and links.
Your signature will automatically appear in any new pitch created. You can delete your signature from the Compose and Personalize screens of your pitches.