Meaning of 零さん?

[Friedrich W. H. Kossebau]

Am Montag, 3. Oktober 2022, 16:27:19 CEST schrieb Jumpei Ogawa:
> Friedrich is not a member of this kde-jp mailing list, so add his email
> address in To or Cc.
> He didn't receive your messages.

Thanks, but I am subscribed to the mailinglist (did for the purpose of my 
question), happily reading so far all your answers (not yet replied to let 
you, the language experts, first come to own conclusions :) ). So no need to 
add my address, all fine without.

Friedrich