Post initial setup, a primary concern will be the log-on issue. If your organization is fine with a separate log-on for your email provider, then this step will be quick. However, that's not typically what businesses want or users expect. In general, users expect to sign onto their desktops and have their email and file sharing sign-ons happen as part of that one-step process. Not surprisingly, this is called Single Sign-On (SSO) and it's enabled in one of three ways: through the use of a back-end directory service like Microsoft Active Directory (AD); an identity management service, like Okta (one of our Editors' Choice winners in that category); or several compatible web services that include SSO along with other apps and email services, like Google G Suite Business and Microsoft Office 365 Business Premium (two of the top providers reviewed here). Which method you choose depends on how your business is configured today and your long-term cloud services strategy. It's definitely a conversation you'll need to have either with your in-house IT staff or your outside IT consultant.
With all of these, you can choose the service that best suits your affordability and the needs of your business. These hosting services are quite secure to use and free of virus and spam threats. Moreover, you can manage multiple email accounts from different providers on a single screen using these. With a number of service providers and a wide range of packages provided by them, you are indeed spoilt for choice to choose the best one for yourself.
Whatever the case, this won’t reflect well on your website or business. If you’re a professional or hobbyist, consider this scenario: your business/blog is mentioned on the radio, TV, or in an article on a highly trafficked site. Suddenly you have 60,000 web visitors . . . and it’s gone. Your site crashes under the stampede. Poof! There goes all that free publicity.