A computer system can implement a mechanism for email thread monitoring and automatic forwarding of related email messages. In one embodiment, a first email message is provided from an email application of a computer system to a plurality of email addresses. An indication is detected, at the email application, that a first email address of the plurality of email addresses is to be provided a copy of subsequent email messages associated with the first email message. Subsequent email messages received at, and transmitted by, the email application are monitored to determine whether one or more of the subsequent email messages are associated with the first email message. In response to determining that a second email message from the subsequent email messages is associated with the first email message, a copy of the second email message is automatically provided to the first email address of the plurality of email addresses.