Python中flask_mail在本地测试成功，但部署到nginx+flask+sqlalchemy服务器后出现“error: [Errno 110] Connection timed out”错误如何解决？

各位大大，是不是我的服务器需要配置什么端口之类的？搞了两天了，无法搞好！

服务器上的 INPUT 端口我只开放了 80,22,21，其他都没有开放。
OUTPUT 和 FORWARD 上我都是 ACCEPT

代码如下：

from flask import Flask
# from run_celery import make_celery
# from celery import platforms
from flask_mail import Mail,Message
app = Flask(name)
app.config.update(
# CELERY_BROKER_URL=‘redis://localhost:6379/0’,
# CELERY_RESULT_BACKEND=‘redis://localhost:6379/1’,
DEBUG = True,
MAIL_SERVER=‘smtp.qq.com’,
MAIL_PROT=‘25’,
# MAIL_USE_SSL = True,
MAIL_USE_TLS = True,
MAIL_USERNAME = ‘[email protected]’,
MAIL_PASSWORD = ‘rkuynjxxxxxpqicfc’,
MAIL_DEBUG = True
)
celery = make_celery(app)
mail = Mail(app)
@app.route(’/’)
def index():
msg = Message(“This is only test Mail”,sender=’[email protected]’,recipients=[’[email protected]’])
msg.body = “This is my first Mail.”
mail.send(msg)
print(‘Mail send OK’)
return ‘sent’
if name == ‘main’:
app.run()

以下是 nginx 的配置：

server {
  listen 80;
  server_name www.demo.com;
  access_log /wwwlogs/www.demo.com_nginx.log combined;
  index index.html index.htm index.php;
  root /wwwroot/www.demo.com;
location ~ .*.(wma|wmv|asf|mp3|mmf|zip|rar|swf|flv|mp4)$ {
valid_referers none blocked .demo.com www.demo.com;
if ($invalid_referer) {
return 403;
}
}
location / {
try_files $uri @flask;
}
location @flask {
proxy_set_header  X-real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_pass http://127.0.0.1:5000;
}
location ~ ..(bmp|swf|flv|mp4)$ {
expires 30d;
access_log off;
}
location ~ /.ht {
deny all;
}
}

Python中flask_mail在本地测试成功，但部署到nginx+flask+sqlalchemy服务器后出现“error: [Errno 110] Connection timed out”错误如何解决？

sinazl 1楼作者

qq 邮箱的密码是特殊设置的，不是登录密码
＆　即便成功了，发几份邮件之后就提示垃圾邮件了

wuwangju 2楼

这个问题通常是因为邮件服务器的网络连接被防火墙或安全组策略拦截了。

首先，检查你的Flask-Mail配置是否正确指向了可访问的SMTP服务器。在服务器上执行以下命令测试网络连通性：

import smtplib
import socket

def test_smtp_connection(host, port=25, timeout=10):
    try:
        with socket.create_connection((host, port), timeout=timeout):
            print(f"成功连接到 {host}:{port}")
            return True
    except Exception as e:
        print(f"连接失败: {e}")
        return False

# 测试你的SMTP服务器
test_smtp_connection('smtp.your-email-provider.com', 587)

如果连接失败，需要检查：