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Your LimeSurvey version: Version 5.6.31+230718
Own server or LimeSurvey hosting: Own server
Survey theme/template: fruity
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I am sending out LimeSurvey invitations from the admin address. Before I send, the "send email reminder" interface provides me with: "DIES survey - Causemann <DIES survey <bc@causemann.org>>" (attachment 1) What shows in my inbox is "Bernward Causemann" (attachment 2). Others receive my plain e-mail address.
Settings see attachments 3 and 4 - it happens in both cases.
How can I ensure that recipients see "DIES survey" as sender?

People probably see "Bernward Causemann" because this email address is stored in their address book under this name. I don't think you can do anything about this as long as you send your emails via this email address, as it is some setting on their end you can't really influence.

Thanks, that helps. After elimnating that problem, the mail comes from "Administrator". If I click "Inherit ON", General Settings shows "Administrator". If I click "Inherit OFF", settings shows "DIES Survey". But the invitation I receive on various mail addresses is still from "Administrator". That stays the same even if I change the "From" in the invitation form before I send out the invitation.
What I can do?

I have now created a new mail address that contains the survey name. Now, the sender address seems to be shown on the recipient side.