For email, security starts with spam, otherwise known as unsolicited email. This is often the bane of not only those who live in their email inboxes,but also of the IT administrators who manage email services. The good news is that spam filters are getting better every day and email providers tend to deploy the very latest and greatest for their customers. The bad news is that these filters still aren't perfect, which means they can catch a lot of "good" email but often vary significantly in effectiveness. Today's spam filters are based largely on machine learning (ML) as the primary method of determining what's bound for the trash bin. Given that ML gets more effective over time, it is no surprise that the services that have been around the longest tend to have better spam detection.


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. 
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.
We narrowed the 16 free email services to eight that we believe are the best options. We eliminated services that allow you to send free email messages but won’t let you receive messages without purchasing the service. We also discounted services that currently have free email accounts available but are either no longer offering support or have plans to discontinue them. We didn’t feel comfortable recommending a service that may not be around long term.
Yahoo Mail gives you 1 terabyte of inbox storage (enough to hold 20 million email messages) before you must delete some to receive more messages. You also have a daily sent-message limit of 500 emails – five times more than most free email services allow, but less than Gmail. The Yahoo Mail app is also easy to use, with the same features available as the online account.
We also love how consistent the design of Uber's emails is with its brand. Like its app, website, social media photos, and other parts of the visual branding, the emails are represented by bright colors and geometric patterns. All of its communications and marketing assets tell the brand's story -- and brand consistency is one tactic Uber's nailed in order to gain brand loyalty.
What about the time you clicked on that PayPal link that wasn't really a PayPal link? "Phishing" is a term applied to either websites or emails that pretend to be something they're not in hopes of getting a user to click on something they should have ignored. This tactis is done in hopes of then getting users to provide confidential information they would have otherwise kept to themselves, typically like passwords, financial information, or other personal data. While there are security measure that fight this, the mechanics behind phishing are, unfortunately, also consistently becoming more sophisticated. Even some dedicated antivirus and business-class hosted endpoint protection suites are having trouble keeping up.
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.
Robly's OpenGen technology utilizes a traditional email campaign process; however, OpenGen then resends your campaign one to 10 days later, with a different subject line to those subscribers who didn't open the first campaign. The system sends emails one at a time, at the moment subscribers are most likely to check their inboxes. The service features A/B testing, a pop-up widget to increase contacts and mobile-responsive templates.
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