Sending emails directly from your email account or from your website’s server is never a good idea. Your delivery rate will be low and if enough subscribers label your emails as spam your server’s IP address could be blacklisted.
That is why most website owners use an SMTP email service to deliver emails. SMTP delivery services, sometimes referred to as transactional emails, are affordable and ensure that your email blasts and email newsletters get delivered. They are also much more cost-effective than hosted emailing services such as Aweber.
On this page I have listed many SMTP relay emailing services you should check out.