Email List Txt File <2025>

import re def clean_email_list(input_file, output_file): with open(input_file, 'r', encoding='utf-8') as f: raw_emails = f.readlines()

pattern = r'^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]2,$' seen = set() cleaned = [] email list txt file

for line in raw_emails: email = line.strip().lower() if re.match(pattern, email) and email not in seen: seen.add(email) cleaned.append(email) import re def clean_email_list(input_file