I need to send a common mail to a large number of members (example 5000 members).
I need to send this using SMTP server.
I will get this 5000 members mail id from Data base.
New members will add to the Data base table in each hour ,
for example
after 1 hour , the number of members will reach to 6000
So Which is the best method to send mail to all these members, by dividing the task