Re: dovecot lmtp and smtputf8

Using the changes described in this pull request https://github.com/dovecot/core/pull/190, you can add SMTPUTF8 capability to the Dovecot LMTP server. Work on the patch is still in progress, and UTF8 support is not complete. However, you can use the following trick:

Enable SMTPUTF8 support in Postfix, but make emails with UTF8 characters as aliases so that the final recipient doesn't have UTF8 characters. Even in this case, on the LMTP side, you need to announce the UTF8 capability, which will be possible if you apply the changes from the pull request.