Consider a discussion forum product where a dozen people have already participated in a particular thread. These people, when posting their messages, checked a box which said "email me when somebody else responds/adds to this thread". (Yes, this is nicked from Cold Fusion Forums :-) Now, a 13th person adds his 2 cents to the thread and posts a response. We want to now send a mail to each of the first 12 participants. No problem so far, except mailing all 12 people is going to take quite a bit of time, and contributor #13 is going to get impatient waiting whilst this is happening. Then imagine a discussion thread with dozens of participants/posts. Solutions : a. Write some script to go through the discussion forums looking for such follow ups and mail the previous participants in the discussion thread. Cronjob it. Tiresome/boring and not as instantaneous as I'd like. b. Is it possible in any way to fork that mailing process (which is actually just one dtml method), so that it can be completed without slowing down the rendering of the page ? I'm guessing this is totally beyond zope. Or am I overlooking something obvious ? TIA, Chas