[OT] debug sieve script operation?

[Albrecht Dreß]

Hi all,

sorry for a slightly OT question:

Is it possible to debug the operation of the sieve scripts created with Horde?  One user has a script which works, except for one rule which looks fine, but suddenly stopped to match...  A log file which tells me which actions are taken by Sieve, and which issues occurred, for every message would be helpful.

Thanks in advance,
Albrecht.