Dynamic e-mail chain participant manager

An approach for new recipient inclusion to e-mail chains. E-mail chain manager receives include participants associated with an e-mail chain, current participants in the current e-mail chain distribution and authorization rules associated with the e-mail chain. The e-mail chain manager determines inclusion authorizations for the include participants based on comparing the include participants with the authorization rules and creates authorization results associated with the include participants. In response to determining the authorization results are passed, the e-mail chain manager creates authorized include participants. The e-mail chain manager creates the participant notifications where the participant notifications are based on the authorized include participants and outputs the participant notifications based on predetermined participant preferences of the current participants. The e-mail chain manager outputs the e-mail chain to the authorized include participants and creates a next e-mail chain distribution based on combining the authorized include participants and the current participants.