This topic created in 3810 days ago, the information mentioned may be changed or developed.
使用 qq 的 smtp 发送邮件，本地测试上正常（国内 ip ），部署到服务器（ digitalocean ）总是显示 502 错误， nginx 日志显示
[error] 8145#0: *47 upstream prematurely closed connection while reading response header from upstream, client: xxx.xxx.xxx.xxx, server: xxx.com, request: "POST /sign HTTP/1.1", upstream: "http://127.0.0.1:8000/sign", host: "xxx.com", referrer: "http://xxx.com/sign
请教大神这是什么原因，该如何解决
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msg7086 Nov 29, 2015
这错误日志怎么看也和 SMTP 无关吧？
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honmaple OP 额，我错了，现在加了异步方案就可以了，虽然不像本地测试般秒速发送
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tanyuxiang Nov 29, 2015 via Android
没用禁用。并且可以轻松跑满 100M 带宽。
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