Using rules, it would be possible to filter an inbound email using the domain of an address, apply to category, move it to a specific folder.

When setting up this type of rule, be aware you are limited to specific words that will be found in the address field of a message. In this case your domain friend@yourdomain.com.

- When Message arrives > with specific words in the senders address > Assign it to a category > Move it to specific folder.

This method should help you organize mass emails better.

Creating rules.

Setting up a category