From bfe5772ed80f0ba7578b111839281661dd2f38ac Mon Sep 17 00:00:00 2001 From: M66B Date: Fri, 13 Feb 2026 08:31:00 +0100 Subject: [PATCH] Updated FAQ --- FAQ.md | 1 + index.html | 2 +- 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/FAQ.md b/FAQ.md index 5b8b10d1bf..d7a70e0f40 100644 --- a/FAQ.md +++ b/FAQ.md @@ -601,6 +601,7 @@ Therefore, this issue can only be resolved by your email provider, or by installing the GitHub version of the app (as an update) and enabling insecure connections in the account/identity settings.** --> *... Untrusted ... not in certificate ...*
+*... Untrusted ... Unacceptable certificate ...*
*... Invalid security certificate (Can't verify identity of server) ...*
*... Chain validation failed ... timestamp check failed ... Certificate expired at ...*
diff --git a/index.html b/index.html index c1b1748c4e..88670665ae 100644 --- a/index.html +++ b/index.html @@ -550,7 +550,7 @@ it is no longer possible to support insecure connections to email servers with c for the version of FairEmail distributed in the Play Store. Therefore, this issue can only be resolved by your email provider, or by installing the GitHub version of the app (as an update) and enabling insecure connections in the account/identity settings.** --> -

… Untrusted … not in certificate …
… Invalid security certificate (Can’t verify identity of server) …
… Chain validation failed … timestamp check failed … Certificate expired at …

+

… Untrusted … not in certificate …
… Untrusted … Unacceptable certificate …
… Invalid security certificate (Can’t verify identity of server) …
… Chain validation failed … timestamp check failed … Certificate expired at …

This can be caused by using an incorrect host name, so first double-check the host name in the advanced identity/account settings (tap Manual setup and account options). Please see the documentation of the email provider about the right host name. Sometimes the right host name is in the error message.

Another possible cause is Certificate transparency failing, so try disabling it in the connection settings tab page.

You should try to fix this by contacting your provider or by getting a valid security certificate because invalid security certificates are insecure and allow man-in-the-middle attacks. If money is an obstacle, you can get free security certificates from Let’s Encrypt.