Establishing communications between a calling server and a...

Event notification system

Expanded addressee sort/listing

Extended message rule architecture

Extensible communication controls

Facilitating annotation creation and notification via...

Facilitating transmission of email by checking email...

Failover processing for automatic responder in mixed server...

Fast path message transfer agent

Filter for modeling system and method for handling and...

Filtered email differentiation

Filtering and managing electronic mail

Filtering computer network messages directed to a user's e-mail

Filtering e-mail messages

Filtering electronic messages

Filtering electronic messages while permitting delivery of...

Filtering email messages corresponding to undesirable domains

Filtering email messages corresponding to undesirable...

Filtering features for multiple minimized instant message chats

Filtering incoming e-mail