Exchange 2003 Server log build up

I have an Exchange 2003 Server which is generating a large amount of 5mb log files titled E002501B.log etc (see attached example) in the Exchsrvr directory.  I'm rapidly running out of space on the partition and need to resolve this problem, any suggestions please?  We have approximately 50 standard mailbox users and 5 users that connect via ActiveSync from their mobile devices.  Thanks in advance.
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Nick RhodeIT DirectorCommented:

Those are transaction logs so either your have alot of mail coming and going or someone else is using you as an open relay.  Typically if your server was being used as a spammer you would normally see junk clogging up the queue

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Simon Butler (Sembee)ConsultantCommented:
Those are transaction logs.
I presume you are backing up the server regularly?
The most common cause of rapid build up of logs if your queues are clear is an ActiveSync device - usually from Apple. Make sure they have been fully updated.

Red-KingIT ManagerCommented:
As the others have alluded to these are transaction logs which are generated from emails being sent and received which can be cleared by doing a full backup at the Exchange Server level i.e. backing up the Windows files and folders is not enough.

They are essentially used by the exchange server as a temporary storage space before the data gets committed to the database.

When you run a Full Backup of the Exchange database the content of the log files is flushed into the database before the backup is taken. Once the backup completes the server essentially checks the most recent log file it has read into the database and deletes all the log files up to that point thus relinquishing all your storage space back to you.

You can do this last bit manually but it is a relatively dangerous procedure that can leave your database in an unstable state if you delete a log file that has not yet been read into the database.
t38Author Commented:
Thanks for all the responses - I'll work through them and get back to you
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