Modifying the subject line with Sieve

[Torsten Schlabach]

Hi!

We are using Cyrus IMAPd 2.1 with the corresponding timsieved.

I was looking at an example how I would be able to prefix the subject 
line of a message in a Sieve script, so I could add a [SPAM] tag for 
example.

I found some sample which contained "require editheader", but the 
editheader extensions is not supported in Cyrus IMAPd's Sieve 
implementation.

Is there any other way to make this happen?

Regards,
Torsten