Based on this post[0] I have a question to startups/eCommerce sites, who do email marketing.<p>How do you maintain IP reputation if you want to keep costs small.<p>Does using services like MailChimp fixes all of your issues?<p>Any tips and hints for companies to keep email marketing cost small?<p>[0] - https://news.ycombinator.com/item?id=15493127
Using Amazon SES will most likely solve all your problems.
Check Sendy (Paid) or MailWizz (Paid) or freeCodeCamp Mail for Good (Free) for a host it yourself solution.