ColdFusion MailSpoolService Manual Restart Issue

I’ve seen a few different ColdFusion 11 Standard servers that have been sending duplicate emails. We’ve had several clients at CF Webtools reporting this issue and over time I’ve had to research this to try to determine how this is happening. During my investigations, I’ve been able to see this behavior happen on each of the servers in question. The obvious response that I’ve see from Adobe and others is that code must be creating to emails in error. However, I’ve been able to prove beyond all doubt that this is not the case. ColdFusion creates a file that it places in the /Mail/Spool/ folder that is named something like Mail4087177804601873442.cfmail. The MailSpoolService runs on a time interval defined in the ColdFusion Administrator. Typically this interval is set to run every 15 seconds. According to Adobe, the Standard edition of ColdFusion MailSpoolService is supposed to be single threaded as opposed to the multi-threaded version that is in the Enterprise version.

Read the rest at  https://www.trunkful.com/index.cfm/2017/11/2/ColdFusion-MailSpoolService-Manual-Restart-Issue

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