When you have a cloud website hosting account and you create an e-mail address, you may take the option to send and receive emails for granted, however, this is not always the case. Sending emails isn't necessarily part of the website hosting packages that providers have and an SMTP service is required to be capable to do that. The acronym means Simple Mail Transfer Protocol and this is the set of scripts that permits you to send out e-mail messages. If you are using an email app, it creates a connection to the SMTP server. The latter then requests the DNS records of the domain name, that is a part of the receiving address to find out what mail server deals with its email messages. After some system information is interchanged, your SMTP server delivers the message to the remote IMAP or POP server and then the e-mail is finally delivered in the corresponding mailbox. An SMTP server is necessary if you work with some sort of contact page too, so in case you use a no charge hosting package, as an example, it is very likely that you won't have the ability to make use of this type of form as many cost-free hosting companies do not allow outgoing e-mails.