limit tcp sessions opened by an IMAP client

Joseph Brennan brennan at
Tue Apr 14 09:06:26 EDT 2009

LALOT Dominique <dom.lalot at> wrote:

> Hello,
> I've looked at google before asking, but I didn't find something.
> Some imap clients are using many tcp connexions. I would like to know if
> there is a way to limit them?

This could make the client fail and increase your helpdesk calls.  Do
you mean more than five?

Whatever you do should check both host and user, so that you don't cut
off multiple users on a timeshare host or a firewall gateway.

Joseph Brennan
Lead Email Systems Engineer
Columbia University Information Technology

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