I've successfully used a meta-refresh with a counter keeping track of which batch of emails have been sent (via session or url parameter) for a quick and dirty way to throttle mass emails.
Dawn On Thu, May 21, 2009 at 5:24 PM, Troy Jones <t...@dynapp.com> wrote: > Clarke, > > > > We have a similar application that sends out mass mailings. In the past we > have handled this using cfthread. In this simplified example, the code is > using cfthread to set a 1 second interval between each email. > > > > <cfthread name="#threadName#" action="run"> > > <cfoutput query="getContacts"> > > <cfset valid_email = > IsEmail(email_field)> > > <cfif > valid_email> > > > > > <!--- Build > email here ---> > > > > > </cfif> > > <!--- pause one second > after sending each email ---> > > <cfthread action="sleep" > duration="1000" /> > > </cfoutput> > > </cfthread> > > > > This seems to work pretty well although you may want to adjust the interval > (remember, in milliseconds). It has two purposes. First, it takes the > processing out of the way of the rest of your other processing. Secondly, > and maybe just as important, it will help prevent your mail server from > getting tagged as a spam source. > > > > Hope this helps. > > > > *Troy Jones* > > Developer/Support Technician > > Dynapp, Inc > > http://www.dynapp.com > > > > *From:* ad...@acfug.org [mailto:ad...@acfug.org] *On Behalf Of *Clarke > Bishop > *Sent:* Thursday, May 21, 2009 4:59 PM > *To:* discussion@acfug.org > *Subject:* [ACFUG Discuss] Sending large numbers of eMail via ColdFusion > > > > I’m trying to finish up a cfm/cfc page that will send out about 3,000 eMail > messages. The messages are press releases and they go to a database of > magazine editors, radio/TV stations, etc. Also, the messages have to be > individually personalized. > > > > John told me: “Don't try to send 3000 all at once. You'll lock up your mail > spool. Do small 50-120 size batches every 10 minutes.” > > > > Plus, I got a timeout error when I tried to run the page. > > > > So, please point me in the right direction. Right now, I’m thinking: > > · Use cfschedule to call a page every 10 minutes. The page then > sends 100 messages. > > · Keep track of which emails have been sent and which page of the > query should get sent next. > > · Cancel the cfschedule after all the messages are done. > > > > Does anyone have a better suggestion for how to go about this? > > > > Thanks, > > > > Clarke > > > ------------------------------------------------------------- > To unsubscribe from this list, manage your profile @ > http://www.acfug.org?fa=login.edituserform > > For more info, see http://www.acfug.org/mailinglists > Archive @ http://www.mail-archive.com/discussion%40acfug.org/ > List hosted by FusionLink <http://www.fusionlink.com> > ------------------------------------------------------------- > > No virus found in this incoming message. > Checked by AVG - www.avg.com > Version: 8.5.339 / Virus Database: 270.12.35/2124 - Release Date: 05/21/09 > 06:22:00 > > ------------------------------------------------------------- > To unsubscribe from this list, manage your profile @ > http://www.acfug.org?fa=login.edituserform > > For more info, see http://www.acfug.org/mailinglists > Archive @ http://www.mail-archive.com/discussion%40acfug.org/ > List hosted by FusionLink <http://www.fusionlink.com> > ------------------------------------------------------------- >
