MailDelivery for Mac

From Dante Palacios:

MailDelivery is a framework, originally created for one of my applications Massive Mail. It was designed using the MailDelivery class (part of the Message framework) as model and to cover the following needs.

• I want to import accounts from Mail.app (if I need to create a "Accounts Preference Pane" most of the job is already done).
• I want to send messages from different places of my application, so, I want to send messages without having to write dozens or hundreds of lines of extra code.
• I don't want to deal with Keychain to send emails, but I want Keychain support to store my passwords (including MobileMe accounts).
• If a message could not be sent, I want to know the reason.
• I want to include custom message headers.
• I want SSL and TLS support.
• I want to be able to send multipart, HMTL and plain text messages, but I do not want to read dozens of RFC's in order to do that.
• Sometimes I want to provide my own source
• If something went wrong, I want my application be able to send emails through Mail.