Recently I received an email newsletter for a company that I never subscribed to, and had already unsubscribed from. So what did I do? I marked the email as spam.

Instead of potentially soliciting clients, email marketing tactics that send emails to users that have not explicitly opted-in, and not cleaning up databases for unsubscribes almost guarantee the opposite effect of losing that potential customer and annoying them. Don’t be surprised if they express their frustration with your company to others as well. Moreover, when they start marking your emails as spam or complaining to their Internet Service Providers, you end up hurting your brand and ability to market online in the future.

Here’s an article that talks more on the issue of email marketing - the status quo isn’t working.