Maxthreads Option
From MsgServerDocWiki
Introduced to MMP in release: 7 Update 3
Maximum number of threads allowed per server process for the selected server.
Use with webmail
Maximum number of threads per server process.
The default value in this context is: 250
Use with imap
Maximum number of threads per server process.
The default value in this context is: 250
Use with pop
Maximum number of threads per server process.
The default value in this context is: 250
Use with metermaid
Maximum number of work threads.
The default value in this context is: 10
Use with purge
Maximum number of threads.
The default value in this context is: 0
Use with the MMP
Maximum number of threads allowed per server process for the selected server. The MMP does not count worker threads attempting to lookup or connect to a back-end server against this limit, see the separate maxconcurrentconnectionattempts option to limit such connections.
The default value in this context is: 250

