Tuesday, May 26th, 2009
(The following was written by Patrick Knight, Director, Client Deliverability, and myself.)
When you send out an email campaign, you need to know how many of your subscribers actually took the time to click on your message and open it. This measurement is called the “open rate.”
The open rate compares the number of people who opened an email message to the number who did not. It’s a percentage of the number of messages “delivered.” An open rate is dependent on a number of different factors. It could be affected by aesthetic reasons, or it could reflect your data management, which in turn may have to do with deliverability issues.
For instance, if your email is blocked by Yahoo!, and the majority of your subscribers have Yahoo! email addresses, the open rate for your email campaign may be disproportionately low.
On the aesthetic side, an open rate is influenced by things like the subject line, sender identification, HTML rendering (such as how the email is show on a mobile device), bulk folder delivery, relevancy of content, and timing of send.
Sometimes a message might be reported as having been opened multiple times. This may happen for a number of reasons. For example, email clients such as Outlook render HTLM within the preview pane, so that each time the user scrolls through his or her inbox and passes your message, it will count as an open. This happens because each time the user previews the message, the user is actually requesting the embedded image from your server, resulting in the report of an open. Ultimately, this would be counted as multiple opens versus a unique open.
Unique opens are somewhat like total opens. The important difference is that only one user is being counted or reported. For example:
- User #1—opens email 2 times.
- User #2—opens email 4 times.
- User#3—opens email 4 times.
This makes a total of 10 opens. However, there are 3 unique opens.
Whether or not emails are opened consistently is largely based on sender reputation, relevancy, and other factors mentioned earlier. Although open rates render inconsistencies, email is very much about building a relationship with your subscribers. As you achieve this through relevant content, setting and honoring expectations, creating trust with your brand, and following best practices, email open rates tend to increase. (more…)

Bankruptcy, falling revenues, decreasing patron counts: These offer just a glimpse of the tough realities casinos are facing.
(The following comes from Patrick Knight, Director of Client Deliverability for mobileStorm.)
Recently our CEO has given a number of 

