how to create workflow for auto mail birthday wishes.date and need to update next birtday field when created or edited need to upadate automatically

How can creat Automail Birthday Wishes in salesforce.plz reply datails.
I have 10 Accounts I want to sent automail birth day wishes.

I keep getting this error:
"Please check that you have a filter for Stages that are not equal to Closed Won or Closed Lost."
my filter logic is:
Filter Logic:1 AND (2 AND 3)
1. Amount greater than ""25,000""
2. Stage not equal to "Closed Won" 3. Stage not equal to "Closed Lost"