Python示例代码
场景：获取邮件主题和内容，并保存为eml文件，文件名格式为email_uid_subject.eml。
重要
风险提示：下述代码在Python 3.11.9进行的测试，用于生产环境之前请务必先做好测试。
# -*- coding: utf-8 -*-import imaplibimport emailfrom imapclient import imap_utf7def get_folders(): # 获取邮箱文件夹列表
list_folder = []
list_folder_org = conn.list() for i in list_folder_org[1]:
list_folder.append(imap_utf7.decode(i).split('/" ')[1].replace('"', '')) # 截取文件夹名称
print(list_folder) return list_folder# def get_content(msg):# # 解码邮件内容# if msg.is_multipart():# # 列表# return get_content(msg.get_payload(0)) # 获取邮件中的文本# else:# # 字符串# return msg.get_payload(None, decode=True) # 获取邮件中的文本，如果是True将解码base64/quoted-printable等格式编码内容，否则不解码def save_email_as_eml(msg, uid): # 保存邮件为 .eml 文件
subject = msg['Subject'] if subject: try: # 尝试解码主题
decoded_subject = email.header.decode_header(subject)[0][0] if isinstance(decoded_subject, bytes):
decoded_subject = decoded_subject.decode('utf-8') # 替换文件名中的非法字符
safe_subject = "".join([c if c.isalnum() or c in (' ', '.', '_') else '_' for c in decoded_subject])
eml_filename = f"email_{uid}_{safe_subject}.eml"
except Exception as e: print(f"解码主题失败: {e}")
eml_filename = f"email_{uid}.eml"
else:
eml_filename = f"email_{uid}.eml"
with open(eml_filename, 'w', encoding='utf-8') as f:
f.write(msg.as_string()) print(f"邮件已保存为 {eml_filename}")# 配置 IMAP 服务器imap_server = 'imap.qiye.aliyun.com' # IMAP 服务器地址username = 'test@example.com' # 用户名password = '*********' # 密码port = 993 # 端口号# 连接服务器，并登录conn = imaplib.IMAP4_SSL(imap_server, port) # SSL加密连接# 认证登录conn.login(username, password)print('邮箱文件夹列表：')
get_folders() # 获取邮箱文件夹列表folder_name = imap_utf7.encode('folder1') # utf-7编码，中文编码conn.select(folder_name) # 'draft','INBOX' #选取文件夹v_type, data = conn.search(None, 'UNSEEN SINCE 05-Mar-2024') # 查询某日期后的未读邮件email_list = data[0].split()if len(email_list) == 0: print('文件夹为空，退出！')
exit(1)print('状态=', v_type, '消息队列序号num=', data)print('该文件夹下所有的UID:', conn.uid('search', None, "ALL"))# 获取最后一封邮件的序号item = email_list[len(email_list) - 1]print('最后一封邮件的消息队列序号num:', item)
v_status = conn.status(folder_name, '()')
v_status_1 = (v_status[1][0].decode('utf-8').replace('MESSAGES', '邮箱中的邮件总数：')
.replace('RECENT', '邮箱中标志为RECENT的邮件数:')
.replace('UIDNEXT', '可以分配给新邮件的下一个UID:')
.replace('UIDVALIDITY', '邮箱的UID有效性标志:')
.replace('UNSEEN', '未读邮件:'))print('邮箱文件夹基本信息：', folder_name, v_status_1)
v_count = 1list_show_yulan = []# 解析邮件for num in email_list:
v_type, data = conn.fetch(num, '(RFC822)')
UID = conn.fetch(num, 'UID')[1]
v_num_uid = UID[0].decode('utf-8').replace('(', '').replace(')', '').split(' ') print('\n解析第' + str(v_count) + '封邮件，num=', v_num_uid[0], ' UID=', v_num_uid[2], '===============================================') print('服务器返回值=', data[0]) # 返回的结果，包含num,UID和邮件原文
msg = email.message_from_bytes(data[0][1]) print('邮件eml原文:\n', msg) # 保存邮件为 .eml 文件
save_email_as_eml(msg, v_num_uid[2])
v_count = v_count + 1# conn.print_log() # 打印IMAP日志conn.close()运行结果
