US Patent 11349800 Integration of an email, service and a messaging service

A messaging system may receive a first message in a conversation. It may be determined that the first message comprises information indicative of an email address associated with an email participant. At least one database may store an association between the email address and the conversation. The messaging service may generate an identifier for identifying the conversation by an external email service associated with the email address and send the identifier to the external email service associated with the email address.