Redmine

I have been unable to configure the email truncation settings using a regular expression. I am not the only one having this issue, see #11684, specifically the note:
"
Etienne Massip wrote:
Why not simply fill the Truncate emails after one of these lines accordingly in the Administration/Settings/Incoming mails tab?

Well to be honest, I could not figure out how to get that to work using a regular expression, maybe some better documentation would provide useful for this part."

If users are writing a patch because they can't work out how to use a built in function, then there is an issue with the documentation.

The RedmineReceivingEmails page says "(It is also possible to allow regex to be truncated, e.g. http://www.redmine.org/issues/5864)"

I tried .* and also /.*/ to try and test if it was working at all. The whole email still got through.