[GH-ISSUE #1828] 521 Error when I use Cloudflare free SSL certificate #1432

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opened 2026-02-27 11:17:05 +03:00 by kerem · 1 comment

kerem commented 2026-02-27 11:17:05 +03:00

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Originally created by @Super-Gil on GitHub (Jan 21, 2020).
Original GitHub issue: https://github.com/modoboa/modoboa/issues/1828

Impacted versions

Not sure...

• Modoboa: Latest
• installer used: Yes
• Webserver: Nginx

Steps to reproduce

1. Setup my website in Cloudflare and require a SSL certificate
2. Build my website with Wordpress
3. Setup Modoboa on the same server
4. Then 521 error occur

Current behavior

521 Error

Expected behavior

Request 200

Video/Screenshot link (optional)

https://mail.anckak.tech/

Originally created by @Super-Gil on GitHub (Jan 21, 2020). Original GitHub issue: https://github.com/modoboa/modoboa/issues/1828 # Impacted versions Not sure... * Modoboa: Latest * installer used: Yes * Webserver: Nginx # Steps to reproduce 1. Setup my website in Cloudflare and require a SSL certificate 2. Build my website with Wordpress 3. Setup Modoboa on the same server 4. Then 521 error occur # Current behavior 521 Error # Expected behavior Request 200 # Video/Screenshot link (optional) https://mail.anckak.tech/

kerem closed this issue 2026-02-27 11:17:05 +03:00

kerem commented 2026-02-27 11:17:06 +03:00

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@tonioo commented on GitHub (Feb 4, 2020):

@Super-Gil The installer was designed to be run on a fresh system, with no existing web server. If you want to share a server then go with a manual installation.

<!-- gh-comment-id:581782820 --> @tonioo commented on GitHub (Feb 4, 2020): @Super-Gil The installer was designed to be run on a fresh system, with no existing web server. If you want to share a server then go with a manual installation.

kerem referenced this issue 2026-02-27 12:09:57 +03:00

[PR #1432] [MERGED] fix import command #2227

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starred/modoboa-modoboa#1432

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