Among the biggest concerns for permission email marketers today are email bounces, spam filters and blacklists – all of which affect email deliverability.

ISPs and corporate domains are battling a huge spam problem. In fact, some reports suggest that more than 50% of all email is spam. To combat this problem and keep spam out of their users’ inboxes, ISPs and corporate domains have been forced to employ various email blocking and filtering techniques. As a result, a spam filter could bounce your legitimate, permission-based email back to you, or your mail server might be flagged as a potential spam source. In either case, your messages won’t make it through to the intended recipient. In the industry, we call this a “false positive.”

Your email deliverability is important because customer acquisition is expensive, and undeliverable emails could mean the loss of customers and prospects that you paid dearly to acquire. Since it is fifteen times less expensive to market to an existing customer than it is to acquire a new one, your efforts to understand and decrease your email bounces – no matter why the bounce occurred – will be well worth your time.

There is a lot you can do to make sure your permission-based email gets delivered:

1. Become a Trusted Sender
2. Understand email filters
3. Analyze your bouncebacks
4. Monitor your ‘reply to’ address
5. Use a reputble email marketing service.

Read more (source Constant Contact)