> On Feb 2, 2018, at 12:03 AM, Olivier <olivier.nic...@cs.ait.ac.th> wrote:
>
> I apologize for being abiguous. It is a problem of authentication to
> SMTP (they have no problem with IMAP). And the certificate has not
> changed (same machine, same name, same file); and cyrus saslauthd has
> not changed either.
And you're also not posting the relevant logs because you'll get more
"inspired" suggestions if everyone has to guess the cause? Right? :-)
You've also not explained what you mean by deleting and recreating the
account.
The only random guess that comes to mind is your SASL library may now
claims to support OAUTH, but really does not. Apple's Mail.app tends
to be fond of that particular SASL mechanism. Of course without logs
that's just crazy wild speculation.
--
Viktor.
