One of the most important compatibility factors to consider with email is the mobility question. How often do your employees need to access email via mobile devices? That's an important issue because most email hosting providers deliver some kind of web client usable as a default inbox. Almost all of these can be accessed via a mobile device, so if your employees don't need to access their emails on the road that much, then such mediocre clients are probably fine.
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.
Along with specialized uses for email, you should investigate how your users are emailing on a daily basis. Email has come a long way in 40 years and the way people use it has significantly evolved. That's important because it will impact the tools and features you need to look for in your hosted email provider's client software. Sure, Microsoft Outlook is still the most popular on-site email client, but a fast-increasing number of today's email users are opting for other email clients, such as Thunderbird, or all-web clients, such as Google's hugely popular Gmail. These clients can be very sophisticated and, depending on what your users are doing with email, they can have a big impact on your day-to-day business process.
Even if you’re not running a burgeoning business, there’s the personal branding component to what an email host can offer. Maybe you’re a graduate student building your personal portfolio and publishing your resumé online when your realize Corporate Hiring Managers are less likely to respond to [email protected] Wouldn’t it be nice to reach out from [email protected] instead? Or maybe you’re establishing a side biz to bring in some extra cash. Would you rather folks considering you for freelance work reach out to [email protected] or [email protected]?
Ultimately, it boils down to a balance between cost, features, and risk. It's always tempting to simply jump on the lowest-cost solution, but the fact that email is ubiquitous keeps this from being the smart play. It's nearly impossible to escape using it, which means your users, your customers, and the guts of your business have all come to depend on it in different ways. You need to discover those ways, evaluate them, and then choose a service that either meets or improves on them. This takes time, discussion with your IT staff, and some investigation; these are steps you don't want to skip. Otherwise, you'll pay for it later.
One example of such cooperation might be a registry that launches a new TLD but does not intend to do all of the marketing and sales activities by themselves. Nevertheless they would like to see quick growth in their user base and to reach this goal they give IONOS very attractive offers. Then, for example, we can sometimes offer free domain registration.
2. An entity or organization that is (i) incorporated within one of the fifty (50) U.S. states, the District of Columbia, or any of the United States possessions or territories or organized, or (ii) otherwise constituted under the laws of a state of the United States of America, the District of Columbia or any of its possessions or territories (including a federal, state, or local government of the United States, or a political subdivision thereof, and unincorporated organizations based in the United States)