SBS exchange 16gb limit

I'm having a limit problem with SBS exchange .  I'm assuming this becasue that is the error that pops up in EventViewer after a reboot.

The database "First Storage Group\Mailbox Store (MAIN)" has reached the maximum allowed size. Attempting to unmount the database.

So, I'm happy to delete some information from it to reduce it's size, but I can't.  how do I do this?

I can;t mount it.  When I do it first tells me that it is sucessfully mounted but as soon as I refresh the page it then tells me that Iit is not mounted.  the error then is:

The MAPI call 'OpenMsgStore' failed with the following error:
The attempt to log on to the Microsoft Exchange Server computer has failed.
The MAPI provider failed.
Microsoft Exchange Server Information Store
ID no: 8004011d-0512-00000000

I'm also aware that Exchange std sp2 has a higher limit, but can that apply to SBS exchange?

Running SBS 2003 and associated exchnage software.

Who is Participating?
Lee W, MVPConnect With a Mentor Technology and Business Process AdvisorCommented:
Weird - sorry about that... this has a download link:

and note the 5th from last question here:
Lee W, MVPTechnology and Business Process AdvisorCommented:
Yes, you can apply Exchange SP2 to an SBS server.

The article isn't clear, but seems to suggest you can just install SP2 - but I would suggest using Method 2 first, then once you've removed some of the data, apply the service pack.  Note that the default db limit with the service pack is 18GB but can be extended to up to 75 GB.

Lee W, MVPTechnology and Business Process AdvisorCommented:
Link for downloading SP2 for Exchange - note System Requirements includes SBS
colin911Author Commented:
leew.  This looks to be a firewall config update. Are you sure thi is what i need?
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

All Courses

From novice to tech pro — start learning today.