in reply to Re: Sending mails to multiple users
in thread Sending mails to multiple users

That's right. Or multiple calls to to passing a scalar each time, does the same thing.

$smtp->to($address1); $smtp->to($address2);
s^^unp(;75N=&9I<V@`ack(u,^;s|\(.+\`|"$`$'\"$&\"\)"|ee;/m.+h/&&print$&;