Setting Up a Mail Server
Plone will send e-mail using the MailHost object, which provides an interface to an SMTP server and allows the developer to write forms and tools that send e-mails. The 'send-to-a-friend” function and the mailing of a forgotten password use the settings configured here.
The default configuration is for a mail server on the localhost at port 25. If the SMTP server is located elsewhere in the network, then you can access the form by clicking plone setup and then clicking Mail Settings. Then change the mail server and the port to suit your configuration. On my network, the mail server is at monty.clearwind.ca on port 1025.
NOTE The MailHost object is a Zope object accessible in the ZMI. This object doesn't currently allow for authentication with the server. If this is needed, change the settings on the server.

Experience Notes
Website Toolkit
Project websites
Workshops
IW Jobs
E-Bulletin