The email piping is a technique of sending email message as an input to a program rather than appending the message to the mailbox file, allowing for real-time email delivery and handling. It is a vital feature for some real time communication and collaboration applications.
For example, email piping allows emails sent to an email address to be automatically imported into a software or application (e.g. into a support ticket system). As a result clients can open and reply to tickets via email without the need to login to the client area first.
For example, you might have a support system to provide support to your clients. Your client sends an email to support@yourdomain.com and the support system imports emails from support@yourdomain.com every 30 minutes.
If you have email piping enabled, the emails your clients are sending will be sent to the software instantly, without any delay.