Mandrill Track Open not working

Question

Currently I send my mail using PHPMailer using Mandrill's instructions.

My email is sent successfully and goes into my gmail/hotmail inbox.

I clicked and open but had no idea why the chart on my Outbound Activity didn't show I had open/click the email. Is it needed to be wait few days only the data reflected on my graph?

I also checked my settings on Mandrill, I did track the open/click email on my settings.

Answer 1

Opens and clicks are tracked when they happen, but the stats don't update in real-time. Mandrill queues the open or click event, processes it for the specific email, and then adds the open or click to the message index for your account. That typically happens within a few minutes, though can sometimes take longer, depending on other factors such as load on the system. We always prioritize sending over things like opens and clicks so that open and click tracking doesn't slow down delivery of messages.