Sending Multiple Order Confirmation Emails

I've just had a very frustrating day trying to work out why my 1.3.6 Zen Cart website wasn't sending out all of the order confirmation emails. (i.e. I have set up the email options to send the order confirmations to [email protected], [email protected], [email protected]).

Using either PHP or Sendmail as the email transport doesn't work - it will send an email to the first address in the list, but that's it. A knock on effect of this is that if you're using the standard Credit Card payment option, it doesn't send the 'middle digits' email either.

The solution I found eventually, was to use SMTP (SMTPAuth to be precise) as the transport system.

I don't know if this is quirk of the host server or an issue with Zen itself but I just thought it might save someone else a lot of head scratching.

Another way to do it is to create a "forwarder" email address such as "[email protected]" (pointing it to the 3 accounts you mentioned), and use the single address in Zen Cart.
Thus, Zen Cart only needs to send one email, and your mailserver handles distribution.