Hi,
I have written a web application in asp.net to send emails (using SMTP) to a list of users and it is working fine.
If we test the application by sending email to 10 users, it is working fine
My client is using to send News Letters to nearly 1900 users. When he sends news letter, all the users gets 2 news letters instead of one. We have observed the SMTP server log, there the email was hit 2 times for each user with nearly 4 minute time difference. Go to the complete details ...