Inbox and Outbox Manipulation in ASP - CDO is not everything
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CDO is not everything, it is just one email component. There are many others faster and more powerful then CDO. The one major limitation of CDO is that it can only be used on Windows NT Server and does not provide certain useful options for sending email. This limitation decreases its use in other major platforms. Actually, CDO is only designed to send quick text-based email. To get extra features we need to use some other component.
Other than CDO, I personally use the Emia4Win (http://www.system-engine.com/index.shtml) component. Emia4Win is free to use, and its primary purpose is to make it easier and faster for a developer to create a full-fledged webmail application. Emia4Win is a bare-bones command line driven IMAP/POP3/SMTP package for sending and retrieving electronic mail. It can be used as a utility/component with the intent to give Web/Internet applications email capabilities. It can be incorporated into any application regardless of what language is used.
So no matter what component you use, each provides the ability to send email. However some are faster and some slower. Enewsletterpro.com performed some speed tests on a Celeron 500 MHZ machine running Windows 2000 and the Windows SMTP mail server. Their statistics are shown below:
Component Name | Company | Cost | Avg. Speed
Messages/Hour |
CDONTS | Microsoft, available as part of IIS SMTP server. | FREE | 32,500 |
Persists ASP Email | Persits Software | $99.95 | 18,000 |
J Mail | www.dimac.net | FREE | 12,000 |
ASP Mail | ServerObjects.com | $49.95 | 12,000 |
SA SMTPMail** | Software Artisans | FREE | 5,000 |
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