Strange codepage in meeting response SMTP header

Hi!

I have noticed am interesting problem when replying to meeting invitation received from internet.

My name holds a non us character and whenever I accept or decline meeting invitation, organizer receives strange response.

My name should be Sebastijan Šef, but organizer receives this:

If organizer checks SMTP headers of my response, strange code page is seen in "From:" line:

Received: from GenLan-DO-MTA by mail.genlan.si
	with Novell_GroupWise; Wed, 07 Aug 2024 13:08:48 +0200
Message-Id: <66B355BE020000CF000F3802@mail.genlan.si>
X-Mailer: Novell GroupWise Internet Agent 24.3.0 
Content-class: urn:content-classes:calendarmessage
Date: Wed, 07 Aug 2024 13:08:46 +0200
From: =?Windows-1256?Q?Sebastijan=20=8Aef?= 
 <sebastijan.sef@genlan.si>
To: <sebastijan.sef@genlan.eu>
Subject: Accepted: Language test
Mime-Version: 1.0

Why has groupwise set this code page (Windows-1256 is Arabic)? I would expect this to be in UTF, but would also be happy with Windows-1250/ISO-8859-2.

Please note that if I send a "normal" email to same user, SMTP header has UTF-8 character encoding set:

Received: from GenLan-DO-MTA by mail.genlan.si
	with Novell_GroupWise; Wed, 07 Aug 2024 13:22:09 +0200
Message-Id: <66B358D8020000CF0003D6E0@mail.genlan.si>
X-Mailer: Novell GroupWise Internet Agent 24.3.0 
Date: Wed, 07 Aug 2024 13:22:00 +0200
From: =?UTF-8?Q?Sebastijan=20=C5=A0ef?= <sebastijan.sef@genlan.si>
To: <sebastijan.sef@genlan.eu>
Subject: Test language mail
Mime-Version: 1.0

Kind regards,

Sebastijan

Kind regards,

Sebastijan

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