Impacted versions

• Modoboa: 1.12.1
• installer used: Yes ?
• Webserver: Nginx

Steps to reproduce

Problem after the update to modoboa 1.12.1 and some plugins

Current behavior

Sorry, I use an automatic translation

502 Bad Gateway when I want to access mail.xxxx.fr Logs Nginx :

2018/11/26 21:52:41 [error] 1725#1725: *9 upstream prematurely closed connection while reading response header from upstream, client: XX.XXX.XXX.XX, server: mail.XXXXX.fr, request: "GET /dashboard/ HTTP/2.0", upstream: "uwsgi://unix:/run/uwsgi/app/modoboa_instance/socket:", host: "mail.XXXXX.fr", referrer: "https://mail.XXXXX.fr/core/"
2018/11/26 22:02:46 [error] 1728#1728: *242 upstream prematurely closed connection while reading response header from upstream, client: XX.XXX.XXX.XX, server: mail.XXXXX.fr, request: "GET /dashboard/ HTTP/2.0", upstream: "uwsgi://unix:/run/uwsgi/app/modoboa_instance/socket:", host: "mail.XXXXX.fr", referrer: "https://mail.XXXXX.fr/dashboard/"
2018/11/26 22:12:48 [error] 1728#1728: *279 upstream prematurely closed connection while reading response header from upstream, client: XX.XXX.XXX.XX, server: mail.XXXXX.fr, request: "GET /dashboard/ HTTP/2.0", upstream: "uwsgi://unix:/run/uwsgi/app/modoboa_instance/socket:", host: "mail.XXXXX.fr", referrer: "https://mail.XXXXX.fr/dashboard/"
2018/11/26 22:22:50 [error] 1727#1727: *331 upstream prematurely closed connection while reading response header from upstream, client: XX.XXX.XXX.XX, server: mail.XXXXX.fr, request: "GET /dashboard/ HTTP/2.0", upstream: "uwsgi://unix:/run/uwsgi/app/modoboa_instance/socket:", host: "mail.XXXXX.fr", referrer: "https://mail.XXXXX.fr/dashboard/"
2018/11/26 22:33:15 [error] 1703#1703: *49 upstream prematurely closed connection while reading response header from upstream, client: XX.XXX.XXX.XX, server: mail.XXXXX.fr, request: "GET /dashboard/ HTTP/2.0", upstream: "uwsgi://unix:/run/uwsgi/app/modoboa_instance/socket:", host: "mail.XXXXX.fr", referrer: "https://mail.XXXXX.fr/dashboard/"
2018/11/26 22:42:08 [error] 9559#9559: *19 upstream prematurely closed connection while reading response header from upstream, client: XX.XXX.XXX.XX, server: mail.XXXXX.fr, request: "GET /dashboard/ HTTP/2.0", upstream: "uwsgi://unix:/run/uwsgi/app/modoboa_instance/socket:", host: "mail.XXXXX.fr"
2018/11/26 22:42:09 [error] 9559#9559: *19 upstream prematurely closed connection while reading response header from upstream, client: XX.XXX.XXX.XX, server: mail.XXXXX.fr, request: "GET /favicon.ico HTTP/2.0", upstream: "uwsgi://unix:/run/uwsgi/app/modoboa_instance/socket:", host: "mail.XXXXX.fr"
2018/11/26 22:42:16 [error] 9559#9559: *19 upstream prematurely closed connection while reading response header from upstream, client: XX.XXX.XXX.XX, server: mail.XXXXX.fr, request: "GET / HTTP/2.0", upstream: "uwsgi://unix:/run/uwsgi/app/modoboa_instance/socket:", host: "mail.XXXXX.fr"
2018/11/26 22:42:17 [error] 9559#9559: *19 upstream prematurely closed connection while reading response header from upstream, client: XX.XXX.XXX.XX, server: mail.XXXXX.fr, request: "GET /favicon.ico HTTP/2.0", upstream: "uwsgi://unix:/run/uwsgi/app/modoboa_instance/socket:", host: "mail.XXXXX.fr"
2018/11/26 22:43:17 [error] 9559#9559: *33 upstream prematurely closed connection while reading response header from upstream, client: XX.XXX.XXX.XX, server: mail.XXXXX.fr, request: "GET /dashboard/ HTTP/2.0", upstream: "uwsgi://unix:/run/uwsgi/app/modoboa_instance/socket:", host: "mail.XXXXX.fr", referrer: "https://mail.XXXXX.fr/dashboard/"
2018/11/26 22:53:18 [error] 9557#9557: *103 upstream prematurely closed connection while reading response header from upstream, client: XX.XXX.XXX.XX, server: mail.XXXXX.fr, request: "GET /dashboard/ HTTP/2.0", upstream: "uwsgi://unix:/run/uwsgi/app/modoboa_instance/socket:", host: "mail.XXXXX.fr", referrer: "https://mail.XXXXX.fr/dashboard/"
2018/11/26 23:02:46 [error] 13697#13697: *31 upstream prematurely closed connection while reading response header from upstream, client: XX.XXX.XXX.XX, server: mail.XXXXX.fr, request: "GET / HTTP/2.0", upstream: "uwsgi://unix:/run/uwsgi/app/modoboa_instance/socket:", host: "mail.XXXXX.fr"
2018/11/26 23:02:47 [error] 13697#13697: *31 upstream prematurely closed connection while reading response header from upstream, client: XX.XXX.XXX.XX, server: mail.XXXXX.fr, request: "GET /favicon.ico HTTP/2.0", upstream: "uwsgi://unix:/run/uwsgi/app/modoboa_instance/socket:", host: "mail.XXXXX.fr"
2018/11/26 23:03:20 [error] 13697#13697: *34 upstream prematurely closed connection while reading response header from upstream, client: XX.XXX.XXX.XX, server: mail.XXXXX.fr, request: "GET /dashboard/ HTTP/2.0", upstream: "uwsgi://unix:/run/uwsgi/app/modoboa_instance/socket:", host: "mail.XXXXX.fr", referrer: "https://mail.XXXXX.fr/dashboard/"
2018/11/26 23:11:35 [error] 1592#1592: *4 upstream prematurely closed connection while reading response header from upstream, client: XX.XXX.XXX.XX, server: mail.XXXXX.fr, request: "GET / HTTP/2.0", upstream: "uwsgi://unix:/run/uwsgi/app/modoboa_instance/socket:", host: "mail.XXXXX.fr"
2018/11/26 23:11:36 [error] 1592#1592: *4 upstream prematurely closed connection while reading response header from upstream, client: XX.XXX.XXX.XX, server: mail.XXXXX.fr, request: "GET /favicon.ico HTTP/2.0", upstream: "uwsgi://unix:/run/uwsgi/app/modoboa_instance/socket:", host: "mail.XXXXX.fr"
2018/11/26 23:13:22 [error] 1592#1592: *8 upstream prematurely closed connection while reading response header from upstream, client: XX.XXX.XXX.XX, server: mail.XXXXX.fr, request: "GET /dashboard/ HTTP/2.0", upstream: "uwsgi://unix:/run/uwsgi/app/modoboa_instance/socket:", host: "mail.XXXXX.fr", referrer: "https://mail.XXXXX.fr/dashboard/"
2018/11/26 23:23:23 [error] 1592#1592: *15 upstream prematurely closed connection while reading response header from upstream, client: XX.XXX.XXX.XX, server: mail.XXXXX.fr, request: "GET /dashboard/ HTTP/2.0", upstream: "uwsgi://unix:/run/uwsgi/app/modoboa_instance/socket:", host: "mail.XXXXX.fr", referrer: "https://mail.XXXXX.fr/dashboard/"
2018/11/26 23:29:11 [error] 1592#1592: *21 upstream prematurely closed connection while reading response header from upstream, client: XX.XXX.XXX.XX, server: mail.XXXXX.fr, request: "GET / HTTP/2.0", upstream: "uwsgi://unix:/run/uwsgi/app/modoboa_instance/socket:", host: "mail.XXXXX.fr"
2018/11/26 23:29:12 [error] 1592#1592: *21 upstream prematurely closed connection while reading response header from upstream, client: XX.XXX.XXX.XX, server: mail.XXXXX.fr, request: "GET /favicon.ico HTTP/2.0", upstream: "uwsgi://unix:/run/uwsgi/app/modoboa_instance/socket:", host: "mail.XXXXX.fr"
2018/11/26 23:31:05 [error] 1592#1592: *21 upstream prematurely closed connection while reading response header from upstream, client: XX.XXX.XXX.XX, server: mail.XXXXX.fr, request: "GET /accounts/login/?next=/ HTTP/2.0", upstream: "uwsgi://unix:/run/uwsgi/app/modoboa_instance/socket:", host: "mail.XXXXX.fr"
2018/11/26 23:31:06 [error] 1592#1592: *21 upstream prematurely closed connection while reading response header from upstream, client: XX.XXX.XXX.XX, server: mail.XXXXX.fr, request: "GET /favicon.ico HTTP/2.0", upstream: "uwsgi://unix:/run/uwsgi/app/modoboa_instance/socket:", host: "mail.XXXXX.fr"
2018/11/26 23:31:09 [error] 1592#1592: *21 upstream prematurely closed connection while reading response header from upstream, client: XX.XXX.XXX.XX, server: mail.XXXXX.fr, request: "GET /accounts/login/ HTTP/2.0", upstream: "uwsgi://unix:/run/uwsgi/app/modoboa_instance/socket:", host: "mail.XXXXX.fr"
2018/11/26 23:31:11 [error] 1592#1592: *21 upstream prematurely closed connection while reading response header from upstream, client: XX.XXX.XXX.XX, server: mail.XXXXX.fr, request: "GET /favicon.ico HTTP/2.0", upstream: "uwsgi://unix:/run/uwsgi/app/modoboa_instance/socket:", host: "mail.XXXXX.fr"
2018/11/26 23:33:25 [error] 1592#1592: *30 upstream prematurely closed connection while reading response header from upstream, client: XX.XXX.XXX.XX, server: mail.XXXXX.fr, request: "GET /dashboard/ HTTP/2.0", upstream: "uwsgi://unix:/run/uwsgi/app/modoboa_instance/socket:", host: "mail.XXXXX.fr", referrer: "https://mail.XXXXX.fr/dashboard/"
2018/11/26 23:43:27 [error] 1592#1592: *37 upstream prematurely closed connection while reading response header from upstream, client: XX.XXX.XXX.XX, server: mail.XXXXX.fr, request: "GET /dashboard/ HTTP/2.0", upstream: "uwsgi://unix:/run/uwsgi/app/modoboa_instance/socket:", host: "mail.XXXXX.fr", referrer: "https://mail.XXXXX.fr/dashboard/"

the problem seems to be coming from uwsgi. the “issue” #1607 to the same problem but I didn’t succeed in doing the same thing. I simply installed uwsgi with pip install.

Expected behavior

Have access to my mailbox and send/receive mails