Hi there,
AFAIK, the TO field is always required. After all, a BCC is a
copy of the original message, so there must at least be an original to copy from ;)
You'll need to put your own address, or a fake address, in the TO field and then add the rest of the addresses to the TO field.
HtH
Imar
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Imar Spaanjaars
Everyone is unique, except for me.