Chilkat smtpQ SMTP Service to Send Queued Email Cost: $449 Get the full version     Trial version     Developer's Website Contacting third-party download site please wait. If your download does not start, click here, or get the full version Descriptions Chilkat smtpQ SMTP Service to Send Queued Email: Chilkat smtpQ is a companion product that works with each of Chilkat's email components and runs as a Windows Service. Each of the Chilkat email components now has a method, SendQ, that dramatically increases sending performance by queuing emails directly to the smtpQ's queue directory for immediate delivery.