I have my custom report that by shedule task send to my e-mail every day. Since Iinstall 7509 update I get mail but without attachment (report in xls format). Request mail I get normal (in my request no attachment at all).
I install ms office outlook on SDP server and configure SMTP on it.
Save local my xls report.
Create mail and attache xls.
Send it.
I get mail with attachment.
This say that my mailserver (Exchange 2007) work fine.