442947 Design mail template and server config to avoid spam filters

I need to send emails to my subscribers, email content oelated to Affiliate Programs. I use a VPS with Cpanel, however I supose thar i'm not building correctly the newsletters in terms of content and images, so all sent mails from me are categorized as spam by hotmail, gmail and others. So, using Interspire Email Marketer on the VPS, Exim, CPanel and WHM Cpanel, I need to know if the cofigurações are totally correct, confirm that my server annouces itself with the correct header, matching records, etc. In short: I need support so that the mails sent are not considered or pass through spam filters, using techniques for this purpose. Please send me then an indication of what kind of services and solutions you offer, as if they are feasible, workable and effective. To find out if that methods work and before accept any bids to this service, I will send you an example of a mail template that I use, the sent mail with headers and content, and test your new mail template designed by you before accepting a bid and give access to the server for the remainder service.