502 Error Django send_mail

`When I try to send email I always get 502 error. The same code works nice on my local machine.

here is my log from /var/log/nginx/error.log

2017/08/15 05:45:34 [error] 1355#1355: *1187 upstream prematurely closed connection while reading response header from upstream, client:, server:, request: “POST /register HTTP/1.1”, upstream: “”, host: …, referrer: …

what I’am doing wrong?


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I believe that your SMTP port might be closed and this is why the connection is being terminated.

Depending on the SMTP port that you are using you need to make sure that the port is open for outgoing TCP connections.

Regards, Bobby