This is an old revision of the document!
Tools | Options | Advanced | Config editor
mail.check_all_imap_folders_for_new true
mail.imap.expunge_after_delete true
Usefull plugins:
This is an old revision of the document!
Tools | Options | Advanced | Config editor
mail.check_all_imap_folders_for_new true
mail.imap.expunge_after_delete true
Usefull plugins: