Emails are the nervous system of business communication and ERPNext has been
designed to make good use of this.
## Sending Emails
You can email any document from the system, by clicking on the “Email” button
on the right sidebar. Before that you will need to set your outgoing email
settings (SMTP server).
All emails sent from the system are added to the Communication table.
> **Info:** What is SMTP? There are two types of email services, sending and
receiving emails. Sending is done via a protocol called SMTP (Simple Mail
Transfer Protocol) and the server (computer) that sends your email to its
destination is called SMTP Server.
Bulk Emails, especially those that are sent without consent (spam), are considered as bad behavior. While it may be okay to send emails to those who have “opted-in” to receive mails, it is very difficult for the internet community to know what is spam and what is allowed. To overcome this problem, most email servers share a black and white list of email senders. If your emails have been marked as spam, you will be blacklisted. So be careful. Many times, it may be a good idea to send email via whitelisted services also known as SMTP relay services which are paid services.These
services will block you from sending spam while ensuring that most of your email does not go in the spam folder. There are many such services available like SendGrid and SMTP.com.
