OK, some great suggestions. I blocked mails with "Content-type: text/html" in the header and noted this on the web site. That should be a reasonable start. Phil Jean Delvare wrote: >>>What I might do is split the lists: >>> >>>sensors-devel@ >>>sensors-users@ >>> >>> >>Is that really needed? The traffic here is quite low, splitting the >>lists doesn't seem to make much sense. >> >> > >I agree with Greg, I'm not sure it's necessary. Most (if not all) >subscribers are developers, so we don't have to hide from ourselves (if >I'm clear). >[...] >