Zvočno obvestilo o prejemu nove pošte
Evolution always notifies you of new messages by adding a small emblem to the mailer icon in the window switcher.

In order to also be notified of new messages in GNOME desktop notifications:
Izberite Uredi ▸ Vstavki.
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Enable Mail Notification.
If a plugin is not available under Edit ▸ Plugins, then please ask in a support forum of your distribution. Your distribution might have decided to disable some plugins or to ship plugins in a separate package.
Open the Configuration tab and set your preferred options.
Open the Accounts tab to select the mail accounts for which you would like to see notifications.
See the GNOME Desktop Help for more information.