Yes it's this proverbial chestnut. Client has been educated about sending out mass e-mails that will upset the Spam Gods and blacklist then in wrathful vengeance.
Currently using MailChimp as our mass mailer solution. This works to a point but staff find it awkward to use. Is there a way of using Outlook as the front end and either sending out through a sanctioned portal or via MailChimp in some way?