$smtp->to("some1@gmail.com\n",
		  "some2@gmail.com\n");

##</code><code>##

$smtp->to("some1\@gmail.com\n",
		  "some2\@gmail.com\n");

##</code><code>##

Couldn't send TO <some1@gmail.com
>: 503 5.5.1 MAIL first. v39sm373565yba.19
 at gmail_test.pl line 235