Actively maintained

Gradebook is targeted to become a solid and flexible gradebook module that will become the basis for Drupal based LMS (Learning Management Systems).

FileField provides a universal file upload field for CCK. It is a robust alternative to core's Upload module and an absolute must for users uploading a large number of files. Great for managing video and audio files for podcasts on your own site.

Features

• Configurable upload paths allow you to save files into per-field or per-user directories
• Per-field and per-node file size limits
• Extensive API for extending field widgets and managing files
• Full revision/translation file management
• Views support
• Ajax Uploads (and progress bar support with the PECL uploadprogress extension)
• Pretty Icons
• All the goodness of CCK (multiple output formats, shared fields, multiple values, and much more)

This module provides a field type for email addresses.

Features:

• validation of emails
• turns addresses into mailto links
• encryption of email addresses with
  • Invisimail (Drupal 6.x, 7.x)
  • SpamSpan (Drupal 6.x, 7.x)
• contact form (see Display settings)
• provides Tokens (for D 7.x: use Entity tokens from the Entity API)
• exposes fields to Views
• can be used with Rules
• Panels Integration

Drupal 8

The basic email field type is in core now: #1668332: Add an E-mail field type into core, making this contrib module obsolete. Specific formatters (like the contact form) can live in separate contrib modules.

D6 to D7 Upgrade

1. Run Core upgrade path
2. Install Content Migrate from CCK
3. Go to "Structure" -> "Migrate Fields"
4. Select Email fields you want to upgrade and submit the "Migrate selected fields" button

This module provides an Open Archives Initiative Protocol for Metadata Harvesting (OAI-PMH), interface to the Bibliography Module.

The Paranoia module attempts to identify all the places that a user can evaluate PHP via Drupal's web interface and then block those. It reduces the potential impact of an attacker gaining elevated permission on a Drupal site.