If you have a cloud hosting account and you create an e-mail address, you might consider the option to send and receive messages for granted, but in fact, this is not always true. Sending emails isn't always included in the hosting packages that companies have and an SMTP service is necessary to be able to do that. The acronym represents Simple Mail Transfer Protocol and that is the set of scripts that permits you to send e-mails. If you work with an email program, it connects to the SMTP server. The latter then searches the DNS records of the domain name, that is a part of the receiving address to find out which email server manages its emails. After system information is swapped, your SMTP server provides the email to the remote IMAP or POP server and the email is finally delivered in the related mailbox. An SMTP server is needed if you work with some sort of contact page form too, so in case you work with a cost-free hosting package, for example, it's probable that you won't have the ability to use such a form as most free website hosting providers do not allow outgoing email messages.