Exim's picky Sieve script engine

I've written a Sieve script for delivery of my email messages to different folders. Exim, the standard Debian mail transfer agent, is rather picky about how you write the arguments to fileinto if you use the maildir format: you have to use the actual absolute path in the filesystem. E.g., to put a message into your logs folder, write

  fileinto "/home/epostma/Maildir/.logs/";
 

if /home/epostma is your home directory and your maildir hierarchy is under the Maildir hierarchy. I think the slash at the end is necessary, but I'm not quite sure.