Mike,

In my case, the table storing the email addresses of the users to whom the Newsletters were supposed to be sent was in MYSQL database.It is also not possible that the organisations will be creating a seperate relay server for sending Newsletters.It is also possible that the organisation might be using the same relay server for this purpose as well as for the corporates internal use. If yes, then sending all the Newsletters in a bulk sometimes creates a heavy load.

Satnam