E-mail messages can face obstacles during sending. The SMTP Relay Service ensures that messages will be sent and delivered securely.
SMTP stands for Simple Mail Transfer Protocol and it is the way an email message is sent over the internet. In other words, when you send an email, this message leaves your server and is then delivered to the recipient's inbox. Only, when a message is sent, it can sometimes run into obstacles. This ranges from poor delivery options to blocked IP addresses, which means that emails can’t always get through. As a user, we don’t see the process of an sent email, but we understand if there has been a problem, when we receive a notification that the message couldn’t be delivered.
To ensure that this process runs smoothly and messages are delivered, an intermediary is required: this is what the SMTP Relay Service involves. The Relay Service ensures that the sent emails, where necessary, receive the correct adjustments to be delivered.
"The SMTP Relay Service ensures the secure sending and delivery of emails"
The email application you use sends the email message, connecting to the Relay Service. With the sent email, there are details that included: All this information is required by the Relay Service to determine how the message will be sent and to whom. The message can be sent directly to the recipient (“Message Delivery Agent”) or it takes several ways before it reaches the recipient's inbox.
The purpose of the Relay Service is simple, it ensures that all sent messages can be forwarded and arrive securely at the recipient.
SmartLockr also uses an SMTP Relay Service. It ensures that messages are sent and delivered to the recipient with proper security. SmartLockr also offers applications, that send e-mail messages that don’t have the correct email routing, to use this technology. The easy thing about the SmartLockr Relay Service is that it is configurable. SmartLockr can be adapted to the needs of the organization. The behavior of the SmartLockr SMTP Relay Service can be influenced by means of “headers” - which can be used to indicate configurations. In other words, depending on the settings made, the Relay Service will apply appropriate security.
The principle is simple: an email that is sent is viewed on its way. It will be determined what to do next. This is what it looks like:
As a sender or recipient, we don’t notice this, but the Relay Service does its work in the background. For SmartLockr this means the following: