1. A system comprising: at least one processing device; a storage device storing instructions, which when executed by the at least one processing device, cause the at least one processing device to implement: an input interface configured to receive electronic messages created by or on behalf of one or more message sources for delivery to an intended recipient; a screening component configured to identify, from among the received electronic messages, qualifying electronic messages that satisfy a capture rule, and capture, as captured electronic messages, a plurality of the qualifying electronic messages; and an output interface configured to inform the intended recipient of the captured electronic messages and to enable the intended recipient: to organize the captured electronic messages according to a plurality of predetermined categories and manage the captured electronic messages; to access information related to a message source associated with at least one of the captured electronic messages; and to indicate that future electronic messages from the message source are not to be captured.