Email with Multiple Records

I am making an addition to the IT Asset Manager. I am trying to add an email feature that will email employees a reminder when their hardware is overdue. It currently sends them the email with multiple records seperated by a comma. Is there anyway to get it to put a return between each record?

For example, this is what the email looks like as of now.

The following items are overdue. Please stop by at your earliest convenience to have them checked and reissued.

RECORD1, RECORD2

Sincerely,
Justin Bledsoe

void itat.sendEmailOverdue()
{
overdue = Checkout_Items [(Issued == "True" && Due_Date < zoho.currentdate)];
sendmail
(
To : overdue.Email
From : zoho.adminuserid
CC : zoho.adminuserid
Subject : "Overdue Items"
Message : ("The following items are overdue. Please stop by at your earliest convenience to have them checked and reissued. \n \n \n" + (overdue.Overdue_Email.getall())) + " \n \n \nSincerely, \nJustin Bledsoe"
)
}