>- see footer for list info -< Kev, thanks. I'm not sure if that will work because even if cfmail is looped over to send 1000 emails each iteration, it's ColdFusion's mail spool process that monitors the spool directory and sends the emails to the SMTP server. It will still attempt to do that in a single session regardless of how many cfmail iterations or even individual cfml requests were made to generate the email files.
Snake, I hear what you're saying about splitting it into multiple staggered requests. That would require a cfc to capture the initial email sending request and then cfschedule several separate requests of, say, batches of 2,000 emails each about 2 minutes apart, then finally a scheduled task to delete the previous tasks. Could get messy with the number of requests our server deals with and if there are a couple of separate user requests to send 5,000 email each around about the same time then the spool directory may exceed the threshold where the SMTP session closes and CF shrugs and gives up. We're already using MailEnable for incoming SMTP only, not outbound. The free version is pretty good, but the problem I encountered sounds more like a limitation with CF's handling of SMTP sessions (i.e. not understanding what to do if a session is terminated) rather than a limitation of Microsoft SMTP. Thanks for your time on a Sunday. :-) Gary. On Sun, Oct 26, 2008 at 9:23 PM, Snake <[EMAIL PROTECTED]> wrote: > >- see footer for list info -< > If you go into the SMTP service properties, click on the "messages" tab, > here you will find a number of settings that will cause you such problems. > You will probably need to increase all of them. > > Although if you are going to doing bulk mailings, I would not rely on the > SMTP server that comes with IIS. You should have a dedicated SMTP server, > or > at the very least install something that gives you more control and better > logging. There are a number of decent mail server products that come with > free versions. > > E.G. > SmarterMail > hMailServer > MailEnable > > You should also stagger your mail-out and not do so many in a single > query/request. > > > -- > Russ Michaels > Certified ColdFusion Professional > My Blog: www.russ.michaels.me.uk > Tel: 0845 8620034 > Fax: 07092 300330 > Skype: russmichaels > > Commerical ColdFusion & BlueDragon Hosting: www.cfmxhosting.co.uk > FREE CFML Developer hosting : www.cfdeveloper.co.uk > > > > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Gary > Sent: 26 October 2008 20:09 > To: Coldfusion Development > Subject: [CF-Dev] cfmail capacity limit, CF8 with Win2003 SMTP > > >- see footer for list info -< > Hi CF'ers. :-) Has anyone encounted a limit sending emails from CF8 via a > Windows 2003 SMTP server? Using <cfmail query="myMailingList"> with at > least > 4,000 email addresses in the query, about 50 to 300 emails aren't sent and > end up in the undeliverable directory. > > CF logs this error: "552 4.3.1 Session size exceeds fixed maximum session > size" > > Adobe advised me to increase the SMTP session size limit above the default > 2Mb recommended by Microsoft. Okay, I increased it to 5Mb but if I try to > send over 10,000 emails I run into the same problem. Increasing the session > limit is *not* the correct solution. I feel this is a bug in CF that > prevents it from understanding what to do if SMTP closes the session. CF > should simply open up a new session and carry on making sure to resend the > last emails that weren't accepted by the SMTP server. > > Anyone willing to share their experience or insight will be appreciated. > > Thanks, > Gary. > _______________________________________________ > > For details on ALL mailing lists and for joining or leaving lists, go to > http://list.cfdeveloper.co.uk/mailman/listinfo > > -- > CFDeveloper Sponsors:- > >- cfdeveloper Hosting provided by www.cfmxhosting.co.uk -< > >- Lists hosted by www.Gradwell.com <http://www.gradwell.com/> -< > >- CFdeveloper is run by Russ Michaels, feel free to volunteer your help -< > > > > _______________________________________________ > > For details on ALL mailing lists and for joining or leaving lists, go to > http://list.cfdeveloper.co.uk/mailman/listinfo > > -- > CFDeveloper Sponsors:- > >- cfdeveloper Hosting provided by www.cfmxhosting.co.uk -< > >- Lists hosted by www.Gradwell.com <http://www.gradwell.com/> -< > >- CFdeveloper is run by Russ Michaels, feel free to volunteer your help -< > _______________________________________________ For details on ALL mailing lists and for joining or leaving lists, go to http://list.cfdeveloper.co.uk/mailman/listinfo -- CFDeveloper Sponsors:- >- cfdeveloper Hosting provided by www.cfmxhosting.co.uk -< >- Lists hosted by www.Gradwell.com -< >- CFdeveloper is run by Russ Michaels, feel free to volunteer your help -<
