I have completed a collection of plays which will be available both on the Kindle store and through my own website as a PDF (for printing out hardcopy scripts in the correct format). I would like to contact directors at school drama departments and amateur companies directly through an email campaign, offering them the PDF file free of charge (there is a royalty payment link for those who want to produce the shows, which is all I care about). Question: Is there some way to embed a link or attach the PDF file without raising all kinds of spam/phishing/malware/Go Directly to Junk alarms? I'd love to do more than simply pitch the collection and ask for permission to send the file or link, but maybe that's all I can or should do.... Thoughts?