> Path: SmapiNNTPd!not-for-mail
 > From: "Tommi Koivula -> Nicholas Boel" 
 > X-Comment-To: Nicholas Boel
 > Newsgroups: FIDOTEST
 > Subject: Test #1
 > Date: Sat, 16 Mar 2024 06:38:00 -0500
 > Message-ID: 
 > References: 
 > X-SMAPI-From: Tommi Koivula 
 > X-SMAPI-To: Nicholas Boel 
 > X-SMAPI-DateWritten: 16 Mar 24  01:38:00
 > X-SMAPI-DateArrived: 16 Mar 24  01:38:00
 > X-SMAPI-Attributes: Local
 > X-SMAPI-Control: @MSGID: 1:154/10 65f53e48
 > X-SMAPI-Control: @REPLY: 1:154/10 65f4c864
 > X-SMAPI-Control: @PID: smapinntpd/linux 2.1.9
 > X-SMAPI-Control: @NOTE: Sylpheed 3.8.0beta1 (GTK+ 2.24.30; i686-pc-mingw32)
 > X-SMAPI-Control: @CHRS: UTF-8 4
 > X-SMAPI-Control: @TZUTC: -0500
 > MIME-Version: 1.0
 > Content-Type: text/plain; charset=us-ascii; format=flowed
 > Content-Transfer-Encoding: 7bit
 >
 > Nicholas Boel -> Tommi Koivula wrote:
 >
 >   NB> Thanks for testing!
 >
 > You're welcome.
 >
 > 'Tommi
 > ---

This message should be sent as CP437. Are you converting it to UTF-8 ?

'Tommi
---