Maildoll is an innovative and powerful email and SMS marketing web application. You can use it for business branding and marketing. It is designed for digital marketing with integration of automated payment gateways such as Paypal, Stripe. You can start your digital marketing business using maildoll tools and make money selling them. You can send email campaigns (newsletters) to subscribers.
And you can use multiple SMTP or PHP emails at the same time with Gmail, Yahoo, Mailgun, Zoho, Elasticmail. If you want to send emails from your own SMTP server.