Email language problem

I got issue with language on the mail app.
I got email in hebrew on the mail up every work is “???” (Photo is attachet), on the server I can see the mail currectly.
Maybe something with missing language codcs?
Mail app:
In my mail server:


how is this related to the Nextcloud Mail app? Are you referring to emails sent by Nextcloud that you open with your OS’ Mail app (THunderbird or similar)?

Hi ty for the reply,

In referring to a mail I got in the mail app on nextcloud (not one from nextcloud)
In third party application (outlook + Thunderbird) + In my mail server I get the correct mail.
Only in the mail app of nextcloud dashboard I get “???” Instead of text.