Date: Fri, 30 Oct 2009 15:04:13 +0200 From: Giorgos Keramidas <keramida@ceid.upatras.gr> To: Aflatoon Aflatooni <aaflatooni@yahoo.com> Cc: freebsd-questions@freebsd.org Subject: Re: Sendmail SMTP server outgoing email rate Message-ID: <87ocnpm3si.fsf@kobe.laptop> In-Reply-To: <148565.58717.qm@web56207.mail.re3.yahoo.com> (Aflatoon Aflatooni's message of "Thu, 29 Oct 2009 21:50:06 -0700 (PDT)") References: <148565.58717.qm@web56207.mail.re3.yahoo.com>
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On Thu, 29 Oct 2009 21:50:06 -0700 (PDT), Aflatoon Aflatooni <aaflatooni@yahoo.com> wrote: > Hi, > Is there a way that I could configure sendmail so that I could control > the rate of outgoing emails? > > For example if there are 2 outbound emails destined for Yahoo.com > server then they would be sent one connection at a time so that it is > not flooding their server. > > Also, is there a limit on the incoming connection for sendmail? Yes, there is a limit for the incoming connections. See the description of "confCONNECTION_RATE_THROTTLE" and "confCONNECTION_RATE_WINDOW_SIZE" in "/usr/share/sendmail/cf/README". For outgoing connections Sendmail only supports throttling based on the load average of the system, at least AFAIK. So you will probably have to use some sort of connection rate-limiting in your firewall if you want to limit the number of outgoing connections.
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