Trying Elementary Hera - ran the email program, was told my mail server certificate was untrusted, got prompted to trust it, when I did so, there was a long delay after which the error

Couldn't find a place to store the pinned certificate

was displayed.

How can I fix this?

2 Answers 2


This code in Terminal should fix it:

$ mkdir -p ~/.config/pkcs11/modules
$ curl https://gitlab.gnome.org/GNOME/gnome-keyring/raw/ff229abca62db366c84dfe58035324f6d8ca6059/pkcs11/rpc-layer/gnome-keyring.module.in > ~/.config/pkcs11/modules/gnome-keyring.module



This is a known issue with the older version of Geary that Mail is based on. The newer Geary has fixed this.


https://gitlab.gnome.org/GNOME/geary/-/issues/20 https://bugzilla.gnome.org/show_bug.cgi?id=736640#c27

The second link provides a temporary workaround.


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