Thunderbird/102.9.1

I just run into a weird bug in version 102.9.1 (yes I still use this for a reason). I have some Alias email addresses, that is, on my Linux mail server they get re-directed to my main email address. However, when I *reply* to such an email address, Thunderbird swaps the From and To (and Reply-to) addresses, and send the email back to myself, from the From address the person who send the email to me in the first place. This is really bad. So it seems when the email address does not exist in Thunderbird itself (as it is a redirected Alias) Thunderbird gets completely confused and mixes everything up? In this case, my actual email address is bk@bart.gen.nz The alias is bart2@bart.gen.nz When I click 'reply' it sets to TO address to bart2@bart.gen.nz, instead of the Reply-To "info@sartrack.nz", and the FROM address to "info@sartrack.nz". How is that possible? See original incoming email below. An identical email but directed to my actual email addres, and the Reply works normally. Return-path: <info@sartrack.nz> X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on athene.sartrack.nz X-Spam-Level: X-Spam-Status: No, score=-2.9 required=3.0 tests=ALL_TRUSTED,BAYES_00 autolearn=ham autolearn_force=no version=3.4.6 Envelope-to: bart2@bart.gen.nz Delivery-date: Sat, 05 Oct 2024 06:42:00 +1300 Received: from [206.83.102.231] (helo=[192.168.50.59]) by athene.sartrack.nz with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.94.2) (envelope-from <info@sartrack.nz>) id 1swmJU-002iEN-Mv for bart2@bart.gen.nz; Sat, 05 Oct 2024 06:42:00 +1300 Message-ID: <31e80da2-9e40-f4a7-fc12-d29d030efeec@sartrack.nz> Date: Sat, 5 Oct 2024 06:41:58 +1300 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.9.1 Reply-To: info@sartrack.nz Content-Language: en-NZ To: bart2@bart.gen.nz From: SARTrack CEO <info@sartrack.nz> Subject: Bart 2 test Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit