Currently I use procmail to filter mails according to specific tokens and trigger certain actions. For that I feed mails which match certain criteria to a pipe which then post processes the mail right when it arrives. >From what I found I could use a workaround with sieve by storing mails >somewhere and then work on those at certain intervals. But this is an awkward solution which causes delays and extra work for locking and post processing.
I read that sieve be the more modern system but without the post-processing feature it is no replacement for procmail to me. Peter
