I have been asked to send about 6500 e-mails to addresses in a member database. I have written the program, that sends and reports the ones that couldn't send etc. But my concern is that this program will just call smtpclient.Send(); and I don't know what happens if 6000 mails are in the queue. Server is MS Exchange as I have been told.
Note: I am planning to send them, say 500 by 500. But what if an exception occurs on the Exchange server at 120... then what happens to the other ones..
I will appreciate little insight to the subject.
Thanks in advance.