I sent my first mailing list message from Roundcube with addressees in Bcc - and they all went to Spam folders, at least in gmail they did, I have not been able to check others. I tried again with another gmail address of my own and one Bcc to a family member. That to me went to Spam, the blind copy to a hotmail address didn't arrive at all!
How do I stop this happening? A Mailing list that always goes to spam is useless!