Be sure to look at the tech support offered by each of these companies, as many weren't as available as we would have liked. You'll find that some offer 24/7 phone support, live chat, and email help, while others leave you to rely on online documentation and limited live support hours. The best services offer a combination of self-serve help resources—where you can search FAQs and articles to find your own answers—as well as live support via chat or phone when you can't solve an issue yourself. We cover all of these concerns in our reviews, plus you can get an overview in the feature chart above.

Customer.io is an email marketing tool that can be used by various different roles within your business including marketers, product managers and of course, growth hackers. Users can send targeted emails to your visitors on your website or to mobile app users depending on their activity. You are notified when they have read your email and/or if they click on one of the links. It also includes A/B Testing capabilities.
Email marketing is the practice of sending various types of content to a list of subscribers via email. This content can serve to generate website traffic, leads, or even product signups for a business. It's important that an email campaign's recipients have personally opted in to receive this content, and that each newsletter offers something of value to them.
From a business perspective, emails are widely used as a cost-effective as well as efficient way of acquiring new customers, boosting sales, building up your brand awareness and fostering a sense of trust among your customers. Email marketing has also shown a better ROI compared to other marketing channels. According to a survey conducted by Direct Marketing Association and Demand Metric, email had an ROI of nearly 122%, whereas other channels such as social media had just 28%.
Want your link testing stream-lined? Put the email through a landing page test and within minutes, you’re going to get an overlay of that email with complete results for every link. The ESP tracking report inserts a tracking pixel in your email and you get subscriber data such as how and where the email was opened, how much time the user spent time reading it, and if it was organically forwarded or printed.

This template is a favorite of our clients. The image led theme is perfect for apparel brands. The ability to add call to action (CTA) buttons can boost your conversion rates. It also has clearly distinguishable headers and footers, which can be used to maintain brand consistency.The clear social media icons enable you to extend the email’s reach. The overall design is good for the young, funky, and female crowd. If you’re looking to appeal to both genders, there are other color combinations available.Good For:
This template is a favorite of our clients. The image led theme is perfect for apparel brands. The ability to add call to action (CTA) buttons can boost your conversion rates. It also has clearly distinguishable headers and footers, which can be used to maintain brand consistency.The clear social media icons enable you to extend the email’s reach. The overall design is good for the young, funky, and female crowd. If you’re looking to appeal to both genders, there are other color combinations available.Good For:
Whether you already have a list of subscribers or are starting from scratch, email marketing services can help. All of the services we cover let you add contacts manually using copy and paste or by uploading CSV or Microsoft Excel files. Some integrate with third-party software enabling you to import Gmail and other webmail contacts, Salesforce and other CRM data, or other software where you might have contacts stored. Depending on the size and location of your list, third-party integration could be key. Verify whether you can export contacts as well (and how easy it is to do so) should you leave the service. Managing users who unsubscribe should also be easy so you're not accidentally contacting anyone who has opted out of your newsletters.
Litmus is an email marketing tool that is primarily focused on testing and tracking your emails. This software offers a web-based drag-and-drop editor so marketers can easily build their own emails. They also have a large selection of customisable templates to choose from. Once emails have been built, previewed (in mobile/desktop) and sent out to your contact list(s), you can make use of their detailed engagement summary reports (including open rate, deletions, how long email was open, geolocation and more).

When it comes to rented or purchased lists, you may come across vendors or marketers who say, "This email list is totally opt-in!" This means the people on the list opted in to an email communication from someone at some point in time -- the list provider, for example -- by filling out a form or checking a box to receive more content from that provider.
If you are intending to sell multiple products, then this is the template for you. The list structure makes it easy to follow. Once again the white background draws the reader’s attention to the content. The red CTAs stand out due to the contrast with the overall color scheme.There is room to create a heading for each product with a paragraph or bullet list of further details. For the main feature image, you can take the opportunity to explain the purpose of the email. The yellow circles can be useful to promote special offers.Good for:
Though designed with the travel industry in mind, this template could be applied across a variety of niches. A simpler format than the ?Hero? theme, this suits those who would rather take a more formal approach. The straightforward two-color theme leads to a focus on the content.The header and footer are separated from the main body of the email by clever image placement. The two- color theme makes the CTAs stand out against the white background.Good for:
Mailjet is an all-in-one email marketing solution used for sending, tracking and delivering marketing and transactional emails. Some highlight features include its intuitive email editor (e.g. drag-and-drop and ready-to-use newsletter templates), personalisation, smart market segmentation, contact management, as well as a free plug-and-play email API.
Not only is InVision's newsletter a great mix of content, but I also love the nice balance between images and text, making it really easy to read and mobile-friendly -- which is especially important, because its newsletters are so long. (Below is just an excerpt, but you can read through the full email here.) We like the clever copy on the call-to-action (CTA) buttons, too.
Don’t talk down to people. I think this should be obvious. But looking at the email offers I get, clearly it isn’t. Don’t tell people, “Not buying this product would be idiotic!” or “Only a fool doesn’t understand the value in this service.” This whole email marketing strategy relies on you making people understand the value they can get from you. And sometimes that means making people see the downsides of not buying. But you can do that in a friendly, respectful way.

If someone didn't ask to hear from you yet, it doesn't mean they won't want to hear from you later. It's your job to prove to them -- through helpful content and valuable offers -- that they should stay up to date with your company via email. If you force your email content on anyone too early, even if you know in your bones they're a great fit for your products or services, you risk preemptively losing their trust and their future business.


Though designed with the travel industry in mind, this template could be applied across a variety of niches. A simpler format than the ?Hero? theme, this suits those who would rather take a more formal approach. The straightforward two-color theme leads to a focus on the content.The header and footer are separated from the main body of the email by clever image placement. The two- color theme makes the CTAs stand out against the white background.Good for:
With the GDPR now governing all email correspondence across Europe, adding an opt-out option to your email template no longer cuts it. Under this act, you must have explicit consent from your contacts to send them emails. Explicit, in this case, means the checkbox a person must click to opt in to an email subscription isn't pre-checked when they see it on your website. And when you buy your email lists, the people on it haven't been given this option -- making you non-compliant with GDPR before you send your first email.
Drip is a great tool for eCommerce businesses, bloggers and digital marketers (beginner or seasoned veteran). In addition to integrations with WordPress and WooCommerce, which make it easier for users to add sign up forms and capture leads, Drip has a lot of unique features that make it competitive. These fun features include list groups, smart email segmentation, and even some tools to help users to reach out to certain audiences. On top of that it is also a marketing automation tool, which means it goes beyond email blasts.
A web-based interface is often available to allow people to subscribe, unsubscribe, and change their preferences. However, mailing list servers existed long before the World Wide Web,[1] so most also accept commands over email to a special email address. This allows subscribers (or those who want to be subscribers) to perform such tasks as subscribing and unsubscribing, temporarily halting the sending of messages to them, or changing available preferences - all via email. The common format for sending these commands is to send an email that contains simply the command followed by the name of the electronic mailing list the command pertains to. Examples: subscribe anylist or subscribe anylist John Doe.

Emails triggered by milestones, like anniversaries and birthdays, are fun to get -- who doesn't like to celebrate a special occasion? The beauty of anniversary emails, in particular, is that they don't require subscribers to input any extra data, and they can work for a variety of senders. Plus, the timeframe can be modified based on the business model.
Not only is InVision's newsletter a great mix of content, but I also love the nice balance between images and text, making it really easy to read and mobile-friendly -- which is especially important, because its newsletters are so long. (Below is just an excerpt, but you can read through the full email here.) We like the clever copy on the call-to-action (CTA) buttons, too.

Bottom Line: Constant Contact does a good job delivering solid email marketing capabilities in an intuitive and nicely-priced interface. However, the company is working hard to expand its capabilities, especially across other marketing channels and even media buying. Overall, it should be on any small to midsized business marketer's evaluation short list.
Hello, Steven. Nice article. You have hit the nail on the head. I too believe that both old and new marketing needs to compliment each other to get the desired result. I feel that with data from new marketing solution like social media shall be added to old tools like email marketing and direct mailers to make them more efficient and bring real business value. Thanks for highlighting the points.
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