Hi, i will make you a short walkthrough on email server creation. 1. email server software deployment, installing and configuration. 2. email server warm up - meaning that the server has to be a reliable one, in order for the emails to get directly into the client (prospect) inbox. Warming up a server mean to send daily reiterated amont of emails, for example, in the first day 1000 emails, in the second day 2000 emails, and so on till you get to 1 million emails. In that moment, your email server becomes reliable and all your emails sent to - yahoo, gmail, hotmail, and business domains - will be received directly in inbox (unless point 3.) 3. composing the email - most of emails will not get into the inbox of the client because it does not pass the spam killer. Spam killer will stop them if the email body text is not properly created and will send the email directly into Junk folder in best case, usually the email server is banned or black listed and all the money spent on it's creation and setup are wasted for nothing. 4. buy a serious list of emails (it does not matter if it is single or double optin because this attribute is gain on other servers, not yours, so the only good thing that can mean - is that emails exists, and still...you don't know how old they are). kind regards!