Does OpenSMTPD support accented characters in email addresses?

Trying to send accented characters using OpenBSD's (v5.9) email server I get a "501 5.1.3: Recipient address syntax error" because the local part of the address has an "é" ("e" with an acute accent) in the name. Does OpenSMTPD support these characters? How can I enable this on my server? At the EH

Missing message-ID header in OpenSMTPD emails

I have an OpenBSD 5.9 and an OpenBSD 6.0 server each set up as email servers. The v5.9 server adds a message-id header to outgoing emails, the v6.0 does not. Looking at the change log for each release it states that for v5.9 "/Add Message-Id header if necessary/" and v6.0 "/Add missing date or mess

No message-id header on port 587 - OpenSMTPD

I have configured an OpenSMPTD server to use port 587 upon which to receive inbound mail. When the email is delivered I do not see a message-id from this originating SMTP server, instead I see a message-id header inserted by the last server in the line, i.e. in this case my office's Exchange server