As some of you might know, I wrote a filter using Mailmunge [1] to fix up DKIM on the mailing list. I checked the filter and it's not mucking with any of the Message-ID:, In-Reply-To: or References: headers. So it is probably the mailing list software. For everyone's benefit, the message I'm replying to has Message-Id: <20260823013057 [ dot ] 0E0D920C81 [ at ] mail [ dot ] linux-ottawa [ dot ] org> Let's see what the In-Reply-To: is set to. Regards, Dianne. To unsubscribe send a blank message to linux+unsubscribe [ at ] linux-ottawa [ dot ] org To get help send a blank message to linux+help [ at ] linux-ottawa [ dot ] org To visit the archives: https://lists.linux-ottawa.org