Follow-up mail to be sent on the particular date

I created the Follow-up date field in Lead module. Mail is to be sent on the one day before specified date, entered in the Follow-up date field.
I tried with the condition,

Module : Lead
Field : Follow-up Date
Operator : Less than or Equal to
Type : Date
Value : Today + 1 Day

Kindly help me to trigger the mail one day before the follow-up date.

Thanks in advance.

Today +1 day will never happen.

You can do create date +1 day, or Jan 20th +1 day, etc. But today plus one day is always tomorrow and it will never trigger the email.

Also make sure you have your cron jobs set up and running and that your workflow scheduler is running.