The format of email addresses is [email protected] where the local part may be up to 64 octets long and the domain may have a maximum of 255 octets.[4] The formal definitions are in RFC 5322 (sections 3.2.3 and 3.4.1) and RFC 5321—with a more readable form given in the informational RFC 3696[5] and the associated errata. Note that unlike the syntax of RFC 1034,[6] and RFC 1035[7] there is no trailing period in the domain name.

In practice, the form validation of some web sites may reject special characters such as "+" in an email address – treating them, incorrectly, as invalid characters. This can lead to an incorrect user receiving an e-mail if the "+" is silently stripped by a website without any warning or error messages. For example, an email intended for the user-entered email address [email protected] could be incorrectly sent to [email protected] In other cases a poor user experience can occur if some parts of a site, such as a user registration page, allow the "+" character whilst other parts, such as a page for unsubscribing from a site's mailing list, do not.


At IONOS, we always strive to offer our products at competitive price levels - for all customers. However, due to the sheer size of our product portfolio, we cannot guarantee to have the best price available for all products, all the time. Instead, we focus on a selected range of domain extensions which are frequently sought after by our customers, such as a .com, and provide those domain names to you using a very aggressive price point.
There are two main factors that make a dedicated server different from a cloud instance. Firstly, the machine's raw performance is different: there is no virtualisation layer consuming resources on a dedicated server, so you are guaranteed full use of the physical resources. The second difference concerns the level of server administration. With a dedicated server, you manage everything from its configuration to the data hosted on it, and you are also responsible for ensuring that it is secure. It will therefore give you the option of a more advanced installation, which is essential for the use of certain business applications (for example). The main benefit of a dedicated solution is the total freedom you enjoy as a user. However, if you would like to avoid technical management and concentrate solely on your web project, then OVH Public Cloud instances are the best solution for you. Just need to build a simple website? Take a look at our shared hosting solutions, which offer you a hosting platform at an unbeatable cost, with the configuration fully managed by OVH.
Think of the name you want to register. The answer is typically your company or website name. It is best to keep your domain name short and easy to understand. Say it out loud, and make sure it sounds great. Next, search to see if it is available. If the name you desire is taken with the .com top-level domain, there are hundreds of others available. Finally, add the top choices to your cart and complete the domain registration.
But your service provider isn't your only worry. If you've opted for any third-party email integration, like combining your email with a third-party customer relationship management (CRM) provider (such as Salesforce), that opens your company's email up to either data-snooping apps deployed by Salesforce or to any data breaches that originate with that service. So the more informed you can be about what's attached to your email service, how that data's being used and accessed and especially by whom, the better off you'll be when it comes time to send confidential email.

When you build a website, you want visitors to come and see what you've done. To get them there, you need a unique domain name that connects to your sites servers. Domain name registration is required to ensure that no one else in the world can claim ownership of your web site's address and to make finding your website simple. Find your one of a kind domain name.
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]?
Forwarded email addresses are sometimes called “aliases”. An alias, as you know, is another name that refers to a given person. In our example, John has an email address with gmail—[email protected] He has just purchased the domain name widgets.com and sets up a forwarding rule which “reads”: Whenever an email comes in to [email protected], forward that email to [email protected] In this case, the address [email protected] is an “alias” for [email protected], as all email goes to the same Gmail address.
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.
Your choice of server operating system will most likely come down to which tools you prefer to use. For example, if you want to build websites with WordPress or you need to use advanced scripting like Ruby or Python, Linux is usually the best option. But if your project requires ASP.NET or other Microsoft-based technologies, you should probably select Windows.

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.
When you build a website, you want visitors to come and see what you've done. To get them there, you need a unique domain name that connects to your sites servers. Domain name registration is required to ensure that no one else in the world can claim ownership of your web site's address and to make finding your website simple. Find your one of a kind domain name.
While it doesn’t cost a penny, we’re adamant on keeping our free hosting sharp and up-to-date. Our Free shared web hosting is based on Apache, PHP, and MySQL. If you’ve been searching for a free hosting platform that supports both legacy and the newest PHP applications, stop looking. We support multiple PHP 5 versions, as well as the newest of PHP 7 to ensure maximum compatibility with anything you need!
Despite the wide range of special characters which are technically valid, organisations, mail services, mail servers and mail clients in practice often do not accept all of them. For example, Windows Live Hotmail only allows creation of email addresses using alphanumerics, dot (.), underscore (_) and hyphen (-).[11] Common advice is to avoid using some special characters to avoid the risk of rejected emails.[12]

An email address identifies an email box to which email messages are delivered. A wide variety of formats were used in early email systems, but only a single format is used today, following the specifications[a] developed for Internet mail systems since the 1980s. This article uses the term email address to refer to the addr-spec defined in RFC 5322, not to the address that is commonly used; the difference is that an address may contain a display name, a comment, or both.
There are many uses for a dedicated server: big data, machine learning, website and application hosting, backups and storage, infrastructure virtualisation, server clusters, business applications (CRM, ERP), and even online game hosting. This is why we offer several different dedicated server ranges, each of which are designed for a specific set of needs. Our sales and support teams will help you with your project, and can offer expert advice on which server to choose.
×