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[GH-ISSUE #1632] Question about TSL Encryption and Windows Mail/Outlook #1283

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opened 2026-02-27 11:16:17 +03:00 by kerem · 1 comment
kerem commented 2026-02-27 11:16:17 +03:00
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Originally created by @horvan on GitHub (Dec 10, 2018).
Original GitHub issue: https://github.com/modoboa/modoboa/issues/1632

Impacted versions

  • Modoboa: 1.12.2

  • installer used: Yes

  • Webserver: Nginx

Install Modoba with Let's encrypt

modoba error

cert

Windows Mail and Outlook say the certifictae is untrsted and it may be it has the wron domain. Not sure why this is.

Connecting Mail Clients like a charm without any errors by useing tsl encryption

Video/Screenshot link (optional)

Originally created by @horvan on GitHub (Dec 10, 2018). Original GitHub issue: https://github.com/modoboa/modoboa/issues/1632 # Impacted versions * Modoboa: 1.12.2 * installer used: Yes * Webserver: Nginx # Install Modoba with Let's encrypt ![modoba error](https://user-images.githubusercontent.com/5676367/49736547-c5432b00-fc8a-11e8-825a-64cb1a0678cc.PNG) ![cert](https://user-images.githubusercontent.com/5676367/49736838-7c3fa680-fc8b-11e8-9c6d-dca541202cff.png) # Windows Mail and Outlook say the certifictae is untrsted and it may be it has the wron domain. Not sure why this is. # Connecting Mail Clients like a charm without any errors by useing tsl encryption # Video/Screenshot link (optional)
kerem closed this issue 2026-02-27 11:16:17 +03:00
kerem commented 2026-02-27 11:16:18 +03:00
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@tonioo commented on GitHub (Dec 11, 2018):

The LE certificate generated by the installer is valid only for the server hostname (ie. mail.domain.tld by default). I guess we could add autodiscover.domain.tld to the list...

<!-- gh-comment-id:446299604 --> @tonioo commented on GitHub (Dec 11, 2018): The LE certificate generated by the installer is valid only for the server hostname (ie. mail.domain.tld by default). I guess we could add autodiscover.domain.tld to the list...
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