Hi; we haven't started using ZCS live yet but are considering it seriously. We have a highly tuned SpamAssassin spam filtering setup for our users and don't want to lose its benefits. I looked at the ZCS docs and it looks like inserting all our SA customizations into ZCS would be prohibitive (we use SARE, sa-update, per-user sa-learn, per-user bayes dbs, razor2, pyzor, dcs, custom rules, etc.).
My current thinking is why not just apply my current SA install via a custom content filter in postfix master.cf? (append -o content_filter=sa:dummy, with appropriate definition of filter "sa" to call the system spamd). Is this likely to work? Will it be robust against ZCS upgrades?
If so, where do I filter SA spam values (by looking at the header SA added) over a certain limit into a systemwide spam trap (just in case they were false positives)? We do that now with procmail, but I'm guessing ZCS has a good way to do this part.
Thanks very much!
-- Gary O