Vba code to send Reminder mails to haven't updated the excel

Hi All

I want vba code to send an reminder to the concern persons who are all not updated the excel sheet daily basis as username as A column and dates for the month as column headers from column b to whatever comes first like may 31 means the columns end at it. I have attached sample workbook. I want a vba code to send reminders to the concern person like, if they haven't updated for today is the first condition, and the person who haven't updated for last two days as second condition and the third condition is who haven't updated for last three days and the fourth is for who haven't updated for last five days means a week.Sample.xlsx

Thanks for your help on this. I am eagerly waiting for your response.

i got all the data, i will place email id instead of employee name. all i want is to take the data for the conditions that applied.