Exchange 2010 creating massive amounts of log files

I just migrated approx 30 users from 2003 Exchange to Exchange 2010 SP1, and just noticed that over the course of 2-3 days, the logs have jumped to 60GB creating a new 1MB log file every minute or two. I have done a dozen or more migrations in the last few months, and have never seen this happen. Any ideas on what to look for or where to start?
Not sure if this has anything to do with it, but i installed Exchange w/ SP1 integrated. This is the first time i've installed w/ SP1 integrated in setup, all the others i had to manually install SP1. Nothing was different about the migration or installation, just that it had SP1 already installed.
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mhdcommunicationsAsked:
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mhdcommunicationsAuthor Commented:
Yeah, virus on network (YAY!!), plus a user had their mail forwarded to themself via a contact creating a loop (contact was for an externally hosted domain that is now hosted).
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imkotteesSenior Messaging EngineerCommented:
Hi,
you can use EXMON to verify is there anything stuck in the queue.

I would say since you are in migration process enable circular logging and move all of them. then monitor if it is increasing the same.
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Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
What is the usage of users and what is the BD size ?
Check with EXMON and also check with message tracking

- Rancy
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mhdcommunicationsAuthor Commented:
Not sure what you mean by "usage of users and what is the BD size". Im assuming you mean DB size (40GB), and the usage of users after about 10 minutes of monitoring of EXMON is around 90, but there are a couple blank entries, and numerous duplicates, and the CPU utilization/user is incorrect (atleast the System Resource Monitor on the server is rempoting significantly less CPU utilization than EXMON is). Exmon reports approx 99% CPU utilization across all users, and System Resource Monitor only reports 10-20% CPU Peak, if that.
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Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
Hope no user has Virus attack or some Spamming happening ..... check message tracking logs

- Rancy
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mhdcommunicationsAuthor Commented:
Checking Queues + logs is a good way to find out if there is an internal problem.
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