I have specific problem. I need to configure redirect emails recognized by specific subject which are delivered to one email account to particular email addresses. It would be more less like: Client send email with subject "aaa" to [email protected] and this mail would be redirected to for example (of course mail account exists) [email protected]. Client send email with subject "bbb" to [email protected] and this mail would be redirected to [email protected] and [email protected]. Client send email with subject "ccc" to [email protected] and this mail would be redirected to [email protected]. I suppose it can't be accomplish under email client but on the server. There is Ubuntu 16.04, ISP 3.1.11, postfix, dovecot. Is it possible to configure under ISP?