Bill Campbell wrote:
On Wed, Feb 08, 2006, Erik Norgaard wrote:
AFAIK cyrus-imap uses a database backend to store mail and has been designed to scale to enterprise systems. The database backend makes indexing and mail lookup faster, but I don't think there's any difference when it comes to retrieving the actual mail.

Cyrus scaling?  Perhaps on one mongo server.  We have installed
multiple servers with courier-imap delivering and serving pop and
imap from a central server housing home directories, and have
seen essentially linear performance as servers are added.

One can index mail stores with something like glimpse, but that's
probably an issue only were there are huge numbers of messages in
individual folders.

I don't claim that courier-imap does not scale, in fact, I don't claim anything about courier-imap at all. I simply remark that cyrus-imap has been designed to scale well and this is achieved by using a data base backend.

Your comment does not prove me wrong: You seem to indicate that cyrus-imap doesn't scale and refer to a successful install of courier-imap. This doesn't make sense - that logic is flawed.

You can only claim that you have found courier-imap scales fine. Well, that's good, then there is choice.

Cheers, Erik
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