Sending email to multiple recipients - perl

Question

I've moved some old code from an old unix box to our new unix box, and I'm having some difficulty with a perl script sending email to multiple recipients. It works on the old box.
Old box perl: version 5.004_04 built for PA-RISC2.0
New box perl: v5.8.8 built for IA64.ARCHREV_0-thread-multi-LP64
Here's the basics of the script (stripped-down):
use Net::SMTP::Multipart;
$to = "sam\#bogus.com tom\#foo.com";
$smtp = Net::SMTP::Multipart->new($smtpserver);
$smtp->Header(To => $to,
From => "junk\#junk.com",
Subj => "This is a test.");
$smtp->Text("Hello, world!\n");
$smtp->End();
This works if I change it to $to = "justOneEmail\#address.com", but if I have two or more email addresses (separated by spaces), it no longer works. I don't get an error message, but no message shows up.
Any ideas why?

Answer 1

Do it like this:
use Net::SMTP::Multipart;
$to1 = "sam\#bogus.com";
$to2 = 'tom#foo.com';
$smtp = Net::SMTP::Multipart->new($smtpserver);
$smtp->Header(To => [ $to1, $to2, 'another_email#server.com' ],
From => "junk\#junk.com",
Subj => "This is a test.");
$smtp->Text("Hello, world!\n");
$smtp->End();
Notice that if you use double-quotes, you should escape the # in the email addresses, or perl may try to interpret it as an array interpolation.

Answer 2

Instead of separating the email addresses with spaces, use a comma with no intervening spaces. This works for me..

Answer 3

Declare an array and put all the email id's like
#MailTo = ('mail1#demomail.com', 'mail2#demomail.com', ...., 'mailn#demomail.com')
Now use the Net::SMTP module to send out the emails
$smtp->to(#MailTo);