[...]
> Probably it is fine to display only files ending in '.txt' per default.
> In addition a file that has more than say 1000 lines should probably 
> also not be displayed (as default, optional OK).  

No, '.txt' would definitely not be enough for me. I'm using elog to log all
administration of our network. In many cases, I simply attach a configuration
file. All those files are plain ASCII and none of them end in '.txt' - and I
would most definitely like them to be displayed inline like they are now. In
fact, this change was the main reason for me to upgrade to 2.5.4

Maybe a configuration option or a "display attachment" button would be the
best solution, then?

Cheerio,

Thomas