Duplicate reminder emails for the same event

Some of my users are experiencing duplicate reminder emails for the same event. These duplicates have the same bodies, different message-id headers and posted at exactly the same time. Has anybody seen this sort of behavior and know a fix.
[260 byte] By [RodneyMcDuff] at [2007-11-25 10:23:50]
# 1
I, too, have noticed this apparent error.No fix at this time, however.
703618 at 2007-7-1 20:39:12 > top of Java-index,E-Mail, Calendar, & Collaboration,Sun Java System Calendar Server...
# 2

We had the same problem. At us I noticed the start/stop from the server went wrong. There were double processes running from the server. You should have 1 admin process, 1 notify process, 1 enpd process and (same as your cpu count) httpd processes.

When the other ones are more then 1, restart the system.

This receiving double e-mail reminder problem, you will only find at people who have AND event notifications on AND event & task reminders on! People who don't have BOTH activated, don't receive double reminders.

Also watchout that your test calendar system can't send e-mail notifications to your production users. But this you can see by reading the headers from the e-mail .. the system where it comes from is then different.

Hope this helps.

Greetz,

Miranda

709039 at 2007-7-1 20:39:12 > top of Java-index,E-Mail, Calendar, & Collaboration,Sun Java System Calendar Server...