IDN - Need help

Nicola Nye nicolan at
Sun Jun 18 20:31:59 EDT 2017

Hi Per,

Your mail has generated a lot of discussion in the FastMail office about
the state of Cyrus's international character support.
The short answer is that you are correct: Cyrus lmtp does not offer
SMTPUTF8. We have added this to the roadmap as something we want to
address in the short-medium term.
The plan is to write a bunch of tests and see where Cyrus has gaps, then
we'll know how much work we have to do to provide support. (If anyone
wants to join in this effort, let us know: we love getting more folks
involved, and it means you get the features you want, faster)



On Sun, Jun 18, 2017, at 10:00 PM, Per olof Ljungmark wrote:
> I am re-posting this - would really like some help here. We need Cyrus> to accept mail with international characters in sender address. If
> someone have experience please share, thanks!
> This is what Postfix reports when it tries to deliver to Cyrus:
> (SMTPUTF8 is required, but was not offered by host XXX
> [/var/imap/socket/lmtp])
> (can't see anything relevant in the log from Cyrus)
> We want it to be delivered but I cannot figure out how - the sender
> address has a "ü" in it.
> Really grateful for a hint.
> Thanks,
> //per
> ----
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