3. Version 4.23 saves the contents of the ACL variables with the message, so
that they can be used later. If one of these variables contains a newline,
there will be a newline character in the spool that will not be interpreted
- correctely by a previous version of Exim. (Exim ignores keyed spool file
+ correctly by a previous version of Exim. (Exim ignores keyed spool file
items that it doesn't understand - precisely for this kind of problem - but
it expects them all to be on one line.)