We narrowed down our list by eliminating vendors that don't specialize in email marketing campaigns or that don't work with small businesses. Next, we researched each provider by investigating its services. We considered pricing when available. After narrowing the list down to seven, we contacted each company's customer service department and posed as small business owners.
For example, if you set up an autoresponder with an interval of 24 and you receive an email from firstname.lastname@example.org at 8:00 AM on Monday, the autoresponder immediately responds to the message. If, however, email@example.com continues to email you throughout the day, the autoresponder does not send another response for 24 hours after the initial email (in this case, 8:00 AM on Tuesday). If firstname.lastname@example.org emails you again after the 24-hour interval expires, the system sends them an autoresponse.
MailUp gives businesses the tools to send newsletters, promotional emails and transactional emails from one platform. The MailUp email and SMS delivery platform combines email marketing tools with SMTP relay for transactional emails and plugins for e-commerce, CRM and CMS systems. The service's pay-per-speed pricing is designed for midsized companies looking to scale their email marketing efforts.