ProtonMail was founded in 2013 by scientists who met at CERN and were drawn together by a shared vision of a more secure and private Internet. Since then, ProtonMail has evolved into a global effort to protect civil liberties and build a more secure Internet, with team members also hailing from Caltech, Harvard, ETH Zurich and many other research institutions.
Examples of this include things such as instant messaging (IM) and team chat tools, video conferencing software, online meeting collaboration tools, shared team intranet sites, and more. Some even integrate with third-party tools such as Slack, a highly popular collaboration tool that combines customizable chat "channels" with file sharing and project management. For those who want to integrate with certain apps more deeply or integrate with custom-developed apps they have built in-house, many bigger-name email services will provide robust application programming interfaces (APIs) that will let your in-house developers or consultants deliver on those needs. They will need to be involved in the email service selection process, however, as this is an important consideration during your evaluation period.
Running in-house email servers does provide more control and wider customization as well as tracking and compliance for small to midsize businesses (SMB). But they require specialized on-site IT staff as well as the need to manually manage and support both hardware and software. A third-party hosted email service matches many of the advantages of in-house email without the expensive initial investment. The ability to manage the number of users, access the latest security protocols, and enjoy ease of connectivity and deployment of hosted solutions makes it a viable and competitive option.
Elastic Email provides comprehensive tools for handling any size of email campaign. With Elastic Email, businesses can create and edit emails using predesigned templates, drag-and-drop editors and raw HTML editors. Features of the service include email client and spam testing, A/B split testing, contact management tools, segmentation, triggered emails, detailed activity reports, private IP addresses, and custom branding.
Things are probably more complicated than that, though. As a recent survey conducted by market research firm Statista clearly shows, email is one of the most popular apps for mobile devices across most organizations and even consumers. Given how many workflows, business processes, and just plain important communications take place over email, this is one area where you likely shouldn't skimp.
Setting up your account usually takes just a few clicks. In most cases, all you need to do is to enter your email address and choose a monthly plan. If you are not sure which is the right email marketing software for you, it is advisable you request a free trial. Some platforms offer free trials to all new users. Just be aware that they usually ask for your credit card details. This means that once the free trial period is over, you will be billed for the following month unless you cancel in due time.

InfusionSoft is the tool of choice for serious marketers. If you run a six figure online business or have a list larger 50,000 subscribers, this may be the tool for you. InfusionSoft combines your shopping cart with email marketing, so you can do complex things like segregate your buyers from your subscribers or mail specific sequences to specific people. You can also send physical postcards from InfusionSoft. InfusionSoft isn’t cheap. The monthly subscription is in the hundreds, and there’s a four figure setup fee. It’s geared towards companies that are already successful and need powerful solutions, rather than startups.
InfusionSoft is the tool of choice for serious marketers. If you run a six figure online business or have a list larger 50,000 subscribers, this may be the tool for you. InfusionSoft combines your shopping cart with email marketing, so you can do complex things like segregate your buyers from your subscribers or mail specific sequences to specific people. You can also send physical postcards from InfusionSoft. InfusionSoft isn’t cheap. The monthly subscription is in the hundreds, and there’s a four figure setup fee. It’s geared towards companies that are already successful and need powerful solutions, rather than startups.
www.imnicamail.com (Not Free - But inexpensive): Looking for an inexpensive Autoresponder? That too starting from $3 with a delivery rate of 94% - that's close to the top two services! Then, ImnicaMail could be your choice. All paid plans do not insist on a forced double opt-in. Comes with full-fledged features like Autoresponder, Survey, Email Builder, Email Analytics, Website Integration, Email Templates, Unlimited email sending and more.
Molly K. McLaughlin is a New York-based writer and editor with more than a decade of experience covering technology. She has tested and reviewed all sorts of software, mobile apps, and gadgets. Before launching her freelance business, she was an editor at PC Magazine, covering consumer electronics, followed by a stint at ConsumerSearch.com, a revie... See Full Bio
For example, if you set up an autoresponder with an interval of 24 and you receive an email from user@example.com at 8:00 AM on Monday, the autoresponder immediately responds to the message. If, however, user@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 user@example.com emails you again after the 24-hour interval expires, the system sends them an autoresponse.
While pricing varies by provider, the cost structure is usually the same. Most email marketing providers charge a monthly fee based on contact list size, with a range of packages and plans. With this structure, most providers allow you to send out an unlimited number of emails each month and have enough different plans to fit into the budget of any business. 
While pricing varies by provider, the cost structure is usually the same. Most email marketing providers charge a monthly fee based on contact list size, with a range of packages and plans. With this structure, most providers allow you to send out an unlimited number of emails each month and have enough different plans to fit into the budget of any business. 

While pricing varies by provider, the cost structure is usually the same. Most email marketing providers charge a monthly fee based on contact list size, with a range of packages and plans. With this structure, most providers allow you to send out an unlimited number of emails each month and have enough different plans to fit into the budget of any business. 
Delivra is an email marketing automation platform designed to ensure the right messages get to the right people at the right moment. The service features automation, a drag-and-drop editor, multichannel drip campaigns, custom and responsive email templates, triggered mailings, and analytics. In addition, Delivra integrates with CRM, e-commerce and web analytic programs.
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