Filter Negation (keyword, tag, email, account..)

Description: Be able to search for conversation that DON'T have a specific keyword or filter

Example use cases:

• Search for an open email from outside your organization with 'is:open -@domain.com'

• Filter out emails about "meeting" but not related to "budget"

• Filtering out for emails bringing a lot of noise, like my "daily capacity report email"

• Clarify context with keywords that can have different meanings, for example, searching for "apple" in the context of food and not technology, you might search "apple -iPhone -Mac"

• Avoiding certain senders by searching for "invoice -[supplier's name/email]"

• Excluding specific types of emails, for instance "promotion -newsletter -automated"

Benefits:

• Have fewer results to swift through