Hab es probiert, irgendwas im Feld Benutzername eingetragen und im "Auswählen aus"
den Knopf "Namen aktualisieren" gedrückt, es ändert sich nichts.
https://help.hcltechsw.com/notes/12.0.0/client/mail_quickref_r.html#n830_refcard"Send mail from your user name, short name address, or Internet address.
You can now send an email from your User name, Short name, or Internet address .
Click From > Select From when composing an email to view and select on of these options.
For example, you can send email from sdaryn@renovations.com rather than Samantha Daryn/Renovations@Renovations. "