I have moved my server from ubuntu 10.04 to 12.04 and mail delivery from courier to dovecot. Everything seems to be working fine, except my mail content filters defined in the old setup doesn't seems to be working. What steps should I take to port the content filters in the new set up? Thanks.
I guess you use ispconfig 3? Did you use the courier to dovecot converter script that I provided here in the forum in several threads? If not, then your server uses now maildrp filter rules on a sieve server and this will not work, you will have to edit each filter rule then and save it again. If you have added filters in the custom field manually, then you will have to recode them in sieve syntax.
