1. A computer-implemented method of processing messages, comprising: at a client computer: receiving a plurality of messages directed to a particular user, each message having a unique message identifier; associating each of the plurality of messages with a respective conversation; associating with each conversation a sender list, the sender list identifying a set of senders of messages included in the conversation; and displaying a list of conversations and their associated sender lists comprising a set of rows by: displaying conversation identifying information for each conversation in the list of conversations as a single row in the set of rows; and displaying the sender list associated with the conversation in the same single row, along with the conversation identifying information; wherein a displayed sender list of at least one respective conversation in the list of conversations identifies two or more distinct senders of messages in the respective conversation.
1. A computer-implemented method of processing messages, comprising: at a client computer: receiving a plurality of messages directed to a particular user, each message having a unique message identifier; associating each of the plurality of messages with a respective conversation; associating with each conversation a sender list, the sender list identifying a set of senders of messages included in the conversation; and displaying a list of conversations and their associated sender lists comprising a set of rows by: displaying conversation identifying information for each conversation in the list of conversations as a single row in the set of rows; and displaying the sender list associated with the conversation in the same single row, along with the conversation identifying information; wherein a displayed sender list of at least one respective conversation in the list of conversations identifies two or more distinct senders of messages in the respective conversation. 4. The method of claim 1 , wherein each sender in a respective conversation has a sender identification assigned a priority, for determining which sender identifiers to include in the sender list, wherein the priority is determined in accordance with date/time information and status information associated with messages in the conversation.