Filtering mail in IMP

Blacklisting email from a certain address

If you want to automatically delete email from a certain address, and you already have a message from that email address, you can set up a filter just by clicking the 'Blacklist' link when you are viewing the message.
The Filter Rules page will come up and you will see that a Filtering Rule has been added that will 'Delete messages where the From: field contains' the email address.
Click on the Apply All Rules button and the message and anything else from the same email address in your inbox will be marked as deleted. To remove them entirely, click on the Purge Deleted link in the upper left corner.

Setting up a general filter

To add a filter that filters based on some other characteristic of the mail than the FROM line, click on Options.
In the Mail Management Column, choose Filters.
Click on the link to Edit Filter Rules.
In the Rule Definition section of the page:

In the Field line, choose the field to filter by (for instance, to filter messages with [SPAM] in the subject line, click Subject)
In the Text line, enter the text you want the filter to look for (for instance [SPAM])
Choose the the Action-- in general, you will choose 'Delete message' to remove messages, but you can also have those messages automatically put into a folder.
Click the Create button.

What happens

The next time you go into your IMP mailbox and new mail is brought into the mailbox, the filters will be applied to the incoming mail. Messages which have the characteristics you asked it to filter for will be marked as deleted. You may want to quickly look over the items marked as deleted To remove them entirely, click on the Purge Deleted link in the upper left corner.