>For some reason my ISP's mail server is not accepting multiple cc's
>from PC-Yarn, though there is no problem via Eudora. I believe the
>cc's are properly formatted, with a comma between each (plus a
>space), and subsequent lines indented. For what it's worth the
>uploads are done with the UKA_PPP SMTP client.
The UKA_PPP mailclient doesn't handle multiple, comma delimited recipients
on the To:, CC: or BCC: line. As a workaround you could write each address
in a separate CC:, To: or BCC: line instead.