when sending mail to al large number of e-mail addresses from our webserver, lots of receipients receive the mail multiple times. in the logfiles I can see that there are several attempts to send the mail all whithin a few seconds.
I get a lot of BDAT and RSET entries in the logfile before finaly I see the QUIT command
The mail has been sent 6 or 7 times by then
The size of the files is 50-80 kb, why does iis try to send the mail using bdat?
I hope someone has a solution!