Hello, I'm looking for something maybe similar to master password but for final users and I don't know if there is already a way I could do it with dovecot. I have accounts that are used by a set of users who know their password. But I now want to remove this shared password and the users has to access to this shared account with their own password. Using shared folders is not an option (at least, not the first option) because of the behaviour our users are familiar with, such as: * They have and manage different sieve filters for the account * They have thier own Sent, Drafts, SPAM... for this shared account and their email client recognizes them as it (because they have its own account). What I'm looking for is something similar to master password, but for a user identifying as another regular user, not the "master" one. Do you know if there already is a way to configure a similar behaviour? I'm planning to configure an user and authentication backend (maybe pam) that gets users as <realuser>$<finaluser> and the realuser password, checks if <realuser> should access to <finaluser> and then returns <finaluser> mail location to dovecot. Any idea? -- Angel L. Mateo Mart?nez Secci?n de Telem?tica ?rea de Tecnolog?as de la Informaci?n y las Comunicaciones Aplicadas (ATICA) http://www.um.es/atica Tfo: 868887590 Fax: 868888337