A method by an email sending system to send emails from different public sending network addresses. The method includes receiving, by a load balancer, an email that is to be sent by the email sending system, sending, by the load balancer, the email to a mail transfer agent (MTA) instance from a plurality of MTA instances, wherein each of the MTA instances has access to configuration data that indicates which proxy virtual machines (VMs) serve as egresses for which public sending network addresses, determining, by the MTA instance, a public sending network address to send the email from, determining, by the MTA instance based on consulting the configuration data, a proxy VM that serves as an egress for the public sending network address, and sending, by the MTA instance, the email to the proxy VM for sending to its destination from the public sending network address.

A system for split keys for wallet recovery includes an interface configured to receive a request to recover a user private key, and a processor configured to provide a request to a credential issuing authority for a first encrypted recovery key share, wherein the request includes a first identification credential, receive the first encrypted recovery key share from the credential issuing authority, provide a request to a trusted organization for a second encrypted recovery key share, wherein the request includes a second identification credential, receive the second encrypted recovery key share from the trusted organization, combine the first encrypted recovery key share and the second encrypted recovery key share to determine a recovered encryption key, and determine the user private key using the recovered encryption key.

Methods, systems, and apparatuses for programmatically managing email data integration between an external email resource associated with a group-based communication system user and a group-based communication system are provided herein.

An information processing apparatus includes a processor configured to receive a first e-mail, generate a document including content in a body of the first e-mail, generate address information for accessing the document, send a second e-mail to an e-mail address designated as an addressee of the first e-mail, the second e-mail including the address information and only a portion of the content in the body of the first e-mail, and in a case where an address indicated by the address information is accessed by a user of the addressee, display the document on a display of the addressee user.