Or just . . . maybe refrain from emailing them if they're not publicly listed in an obvious place with an email address. I work at an email marketing company,

Or just . . . maybe refrain from emailing them if they're not publicly listed in an obvious place with an email address. I work at an email marketing company, and this is still the rule we follow when determining if someone can be emailed or not. I guess you can do whatever you want, but try to avoid running afoul of spam filters, otherwise you'll have a tough time getting in touch.