I've got 2C30s + 1C300 on an ISP network and these are being used for both incoming and outgoing mails.
Recently, we started having performances issues where the workqueue was paused several times daily(reason paused on antivirus,antispam,etc). This eventually causes the workqueue to backup like 10k-20k and the units don't process mails rapidly.
I also noted some viruses(i.e: MyTob) being detected and was wondering whether IronPort/Sophos engine is not being able to scan the messages properly, thus resulting in this huge performance issue.
We also get lots of sophos timeouts daily. it's set to 120 seconds.
RAM comes up to 60%, even if traffic is not that huge.
Has anyone experienced a similar problem?