Modifiers matching email:

• unwanted,
• bad,
• legitimate,
• important,
• harmful,
• undesirable,
• informational,

Simple categories matching legitimate:

• institution,
• activity,
• business,
• source,
• organisation,
• struggle,
• measure,
• movement,
• research,
• transaction,
• purpose,
• enterprise,
• group,
• expense,
• drug,
• profession,
• location,
• structure,
• work,
• chemical,
• email,
• agreement,
• reason,
• interest,
• goal,
• organization,
• industry,
• assessment,
• relationship,
• job,
• use,
• outlet,
• action,
• discipline,
• case,