15. Do not
Buy e-mail addresses of any kind
Add e-mails from business cards onto your list
16. Do not
Buy e-mail addresses of any kind
Add e-mails from business cards onto your list
Add e-mails from networking meetings onto your list
17. Do not
Buy e-mail addresses of any kind
Add e-mails from business cards onto your list
Add e-mails from networking meetings onto your list
Add anyone UNASKED to your list