Question: what is the purpose of an alias email
[{'answer': 'forwarding email address', 'provenance': [{'wikipedia_id': '12884770', 'title': 'Email alias', 'start_paragraph_id': 1, 'start_character': 27, 'end_paragraph_id': 1, 'end_character': 51, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '12884770', 'title': 'Email alias', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 268, 'bleu_score': 0.9560167778278961, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11351228021233646413}, 'section': 'Section::::Abstract.'}]}]