This is the official page of Webmail Plus, a webmail module for Drupal. Currently it's only supported by Drupal 4.7 and I am working on a release for Drupal 6. If you need a webmail solution for Drupal 5.x please check out Basic Webmail as it's the only stable webmail module available for Drupal 5.x.
This page is designed to host various information that's doesn't quite fit on the Drupal Webmail Plus project page.
Installation
When installing Webmail Plus with Dovecot IMAP server you might encounter the following error:
SECURITY PROBLEM: insecure server advertised AUTH=PLAIN
This is a bug in the IMAP implementation that probably propagated into your PHP IMAP library. The way around it is to configure Dovecot with SSL and configure Webmail Plus with the following parameters:
Options to pass with the IMAP connection: /tls/novalidate-cert