Format address in message header
From https://www.tryton.org/~irclog/2022-05-25.log.html#t10:05 The names in message header must be encoded but this is no more the case since rev b818ce5257dc and rev 8288b688cfeb.
From https://www.tryton.org/~irclog/2022-05-25.log.html#t10:05 The names in message header must be encoded but this is no more the case since rev b818ce5257dc and rev 8288b688cfeb.