Techniques, including systems and methods for distributing electronic messages, are disclosed. In an embodiment, information relating to a message thread is maintained. The information includes information identifying one or more members of a distribution list to be excluded from receiving messages in the message thread. When it has been determined to prevent distribution of the electronic message to one or more members of the distribution list, the electronic message is distributed to members of the distribution list excluding the one or more members to whom distribution is to be prevented. The distributed electronic message may identify the distribution list as an intended recipient.