On 21/07/2016 10:04, Ondrej Pokorny wrote: > Why does your client ignore mailing list threads? (Or why does my > Thunderbird email client ignore threads on messages sent from you?) It's replying through Gmail web interface seems to screw it up. Can't use it for mailing lists then. Bummer. P.S. This one is sent through Thunderbird. Sorry for the mess. Denis