One of SOGo features is Delegation: "Delegate access to your mail account or delegate an invitation to another person."
If user A delegate access to his mail account to user B, then user B can see user's A Firstname Lastname <email address> as one option in From: field in Compose Message windows. How can granting access to other user to send messages can function, regarding required Postfix configuration? Usually Postfix is configured with smtpd_sender_login_maps, in order to block sender address spoofing with SMPT AUTH. Both delegation options, delegation of access to mail account, as well as delegating of invitation are functioning from web interface only, but not from Thunderbird with SOGo extensions installed. -- users@sogo.nu https://inverse.ca/sogo/lists
