This article sets out the steps needed to support multiple domains and their users’ email accounts allowing them to recieve emails via secure IMAP and send emails via a secure SMTP server using their POP3/IMAP credentials. This is particularly useful for mobile users (road warrior) who may not have a consistent ISP provided SMTP server.
- Recieve emails, using IMAPS or POP3S via Dovecot
- Configuring Postfix to receive and send emails for virtual domain, and emails accounts
- Configure SASL to provide a method of authenticating users email users to allow them access to the Postfix SMTP in order to send emails securely.
- Easy delegated management of virtual domain mailboxes using PostfixAdmin
This article has been put together from countless other articles so that it should provide an all inclusive set of instructions.