Python+Flask实现便捷SMTP邮件HTTP在线接口.md

from flask import Blueprint, jsonify, request
from api.send_email import send_html_email

email_bp = Blueprint("email_bp", __name__, url_prefix="/api/email")


@email_bp.route("/send", methods=["POST"])
def send_email_api():
    data = request.json
    result = send_html_email(
        subject=data["subject"],
        html_content=data["content"],
        recipients=data["recipients"],
        nickname="Flask通知",
    )
    return jsonify({"code": 200, "msg": result})

import smtplib
from email.mime.text import MIMEText
from email.header import Header
from email.utils import formataddr
from config.init import SMTP_HOST, SMTP_PORT, SENDER_EMAIL, SENDER_PSW


def send_html_email(
    # 邮件主题
    subject,
    # 邮件内容
    html_content,
    # 收件人邮箱地址
    recipients,
    # 发件人昵称
    nickname,
    # 发送超时
    timeout=20,
):
    # 创建HTML邮件对象
    msg = MIMEText(html_content, "html", "utf-8")
    # 修复From头格式（核心修复）
    msg["From"] = formataddr((nickname, SENDER_EMAIL))
    msg["To"] = Header(",".join(recipients), "utf-8")
    msg["Subject"] = Header(subject, "utf-8")
    # 建立SMTP连接
    try:
        server = smtplib.SMTP_SSL(host=SMTP_HOST, port=SMTP_PORT, timeout=timeout)
        # 调试
        # print("开始连接...")
        # server.set_debuglevel(1)
        # print("开始登录...")
        server.login(user=SENDER_EMAIL, password=SENDER_PSW)
        # print("开始发送...")
        server.sendmail(
            from_addr=SENDER_EMAIL, to_addrs=recipients, msg=msg.as_string()
        )
        return f"邮件发送成功"
    except smtplib.SMTPException as err:
        return f"邮件发送失败: {err}"
    finally:
        server.quit()