Infinite Email Sender offers you to manuel email mode and automatic email mode that you can use your mail list to send thousand of mails. According to smtp that you used, inbox rate can change. On our tests, we had a high inbox rate. Infinite Email Sender also supports proxies.
In the video, we tried the two methods which are manuel and automatic mods.
Both methods worked flawlessly. For manuel method, we put our email and password with correct smtp settings, and targeted email. We managed to get our email to inbox. Inbox rate really high with our software but this still depends on your smtp settings.
For automatic method, we sent around 15-20 emails in a few seconds. You should have an email password list, targeted emails list and your subject:message list. It will fastly send the emails to the targets.