When you send the mail using filename email, simply do this in the data step:
data _null_;
filename emailout; /* or whatever file reference you used in filename email */
/* as one of the options in the infile statement, you can attach the want2 dataset, using its physical path */
put "&total_read observations were read.";
put "&total_output were accepted.";
put "&total_excluded were rejected.";
run;
As an alternative to attaching, you could store the want2 dataset in a library that is accessible to users, and simply add the complete dataset name as text to the email. That keeps mails small (to the pleasure of your mail administrators).
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