SendPulse

SendPulse is a marketing platform offering various online marketing services, but its email marketing feature is the most popular. The overall structure is lucid & it offers tons of professionally-designed email marketing templates enabling you with total customization & flexibility to design the email campaign as per your vision. Once you have created the campaign, you have the option to schedule the emails to be automatically sent out at the right time based on user behavior, or at a scheduled event and other trigger options.

You have the liberty to send up to 15,000 emails per month & up to 2,500 mails under the free plan. Also, the free plan gives you access to Send Pulse's highly regarded support team, including support via live chat. The paid plan is priced at approx $7.88 per month