# MUA-facing IMAP and SMTP (submission) proxy with Dovecot

Forwards IMAP and SMTP (submission) connections from MUAs to different backend servers based on the mail domain.

```yaml
dovecot_proxy:
  domain_proxies:
    example.com:
      backend_host: myoldmailsetup.net
    mymaildomain.org:
      backend_host: mynewmailsetup.org
```

This proxies users with `@example.com` email addresses to myoldmailsetup.net and users with `@mymaildomain.org` email addresses to mynewmailsetup.org.

Make sure to setup ssl certificates (see defaults for `ssl_cert` and `ssl_key`).