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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.

How it Works

1. The SendQ method generates an email messages and deposits a .eml file in the smtpQ's queue directory.
2. The smtpQ service is immediately notified of the presence of a new file and starts a new thread to load and send the email. You can control the maximum number of threads that are started.
3. If the send was successful, the email can be optionally saved to a 'sent' directory. If the send was not successful, the email and an XML error log are saved to an 'undeliverable' directory.

The smtpQ Manager

Chilkat smtpQ is easy to configure and manage. A screen shot of the manager interface is shown below.

*After downloading and running the smtpQ installer, be sure to run the smtpQ manager and click the "Install" button. You will also need to click the "Start Service" button to start the service for the first time. If you have configured it to Auto-Start, the service will be started automatically when the system reboots.

smtpQ Manager Features

• The smtpQ service is multi-threaded and can be configured to run as many concurrent threads for sending as you desire.
• You can set the directories where emails are queued, saved, and where errors are reported.
• You can opt to delete emails after sending.
• Allows you to configure the service to auto-start when the computer is booted.
• Installing and uninstalling the service is easy.

More Information

• Chilkat smtpQ can send any kind of email, including signed and/or encrypted emails, emails with attachments, HTML emails, etc.
• Chilkat smtpQ will run under the default System Account, but you can use the standard Windows Management snap-ins to configure the service to run under any account. When sending signed or encrypted email, attention should be paid to this especially if a certificate is located in a current-user certificate store.