Some more information on my SOGo configuration:
When you want to write an e-mail in SOGo, then your account name will be the sender name. To change this, you need to add this configuration:
SOGoMailCustomFromEnabled
This is is the text from the documentation for this config:
Parameter used to allow or not users to specify
custom “From” addresses from SOGo’s
preferences panel.
Defaults to NO when unset.
This allows you to have your full name as sender under identity (in German: Identitäten)
I moved the configuration mentioned in my previous post (see above) to the following section:
/* General */
SOGoMailAuxiliaryUserAccountsEnabled = YES;
SOGoMailCustomFromEnabled = YES;