At first everything seemed fine, but then the spool started to fill up. Then the Queue and the SMTP service both started restarting randomly. The Queue service in particular seemed very unstable. After several hours the problem only got worse, some emails got delayed by 30 minutes to an hour.
I rolled us back to 8.05 and everything seems fine again.
An initial impression is that maybe the new antispam filters are chocking (we get a lot of spam), and creating a bottleneck for email delivery which snowballs.
Anyone else experienced problems with this upgrade?
Stephan.
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