It is a feature that allows you to collect all emails sent to an invalid email address on the domain\
**Step 1**

1 - Logged into your cPanel, select "Default Address" in the Email section.

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![](http://34.207.224.239:3000/rails/active_storage/blobs/redirect/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBBdWRQIiwiZXhwIjpudWxsLCJwdXIiOiJibG9iX2lkIn19--529501eb2ba4fdbd29e283b56ac4d853f4df7f88/image%20(70).png)

2 -  Arriving on this screen you must choose the domain that will carry out the configuration.

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![](http://34.207.224.239:3000/rails/active_storage/blobs/redirect/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBBdWhQIiwiZXhwIjpudWxsLCJwdXIiOiJibG9iX2lkIn19--aa99d694ca094e36b848ea8c5d868c1c103fcf0e/image%20(71).png)

Now, you must decide what the system will do with messages for non-existent senders from that domain.

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![](http://34.207.224.239:3000/rails/active_storage/blobs/redirect/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBBdWxQIiwiZXhwIjpudWxsLCJwdXIiOiJibG9iX2lkIn19--fead007863048c0f5235c0e3623948f14e5bd1bb/image%20(72).png)

**1**. "Discard the email while the server processes it at SMTP time with an error message", an error message is sent to the sender;

**2**. "Forward to email address", the message can be directed to an email account of your choice;

**Step 2**

1. It is still possible, in "Advanced Options", to choose three other alternatives:

   ![](http://34.207.224.239:3000/rails/active_storage/blobs/redirect/eyJfcmFpbHMiOnsibWVzc2FnZSI6IkJBaHBBdXBQIiwiZXhwIjpudWxsLCJwdXIiOiJibG9iX2lkIn19--230f5c54914b50c6017b8b94cdb71ac95772472c/image%20(73).png)

   

4. Finally, save your settings by clicking "Change".

Hope this helps !