An interface enables perception of information regarding e-mail communications. The interface includes an e-mail application user interface that enables perception of e-mail message information for one or more e-mails received by an e-mail participant and that enables active display of one or more of the received e-mails selected by the e-mail participant, The interface also includes a mechanism that determines a request for e-mail message information for one of the e-mails from within a desired e-mail message that is not actively displayed. The interface further includes an informational tool tip that provides a temporary perceivable indication to the e-mail participant of at least a portion of the requested information for the desired e-mail message while maintaining active display of the one or more selected e-mails.