Stop incoming mail if message queue exceeds set value

[Gordon Colyn]

I am running a round robin dns mail solution with 4 mailscanner servers
accepting mail.  The problem I am having is that on occasion 1 of the
servers gets hit with massive volumes over a very short time so the queue
can grow to 5000+ in a matter of minutes causing mail delivery delays on
that specific server.  I would like to be able to set a limit on the queue
size so that the server stops accepting mail until the queue drops below
that set value.

I have tried with sendmail creating 2 cf files but can't get it working.
Does this have to be managed by mailscanner, r can it be done in sendmail?

Currently using sendmail-8.14.1 and Mailscanner 4.63.8

Thanks


Gordon Colyn 
Office : 086 123 ITNT (4868)
Cell : 083 296 7534
Fax : 086 520 0885
InTheNet Technologies
www.itnt.co.za
MSN:gordoncolyn at hotmail.com
SKYPE:gordoncolyn <skype:gordoncolyn?call> 

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