Hi Kurt, On Sat, 16 Mar 2019 14:59:16 +0100, Kurt Roeckx wrote:
> So from what I understand, the problem is really on the dovecot > side. What does dovecot's log show? > > Dovecot can configure DH, which seems to default to: > ssl_dh = </usr/share/dovecot/dh.pem > > That file should be fine, it's 4096 bit. Today is sunday and I am at home now. The machines of problems are in my office so, perhaps, at tommorow I will check the settings of dovecot. Thanks in advance. Best regards, 2019-3-17(Sun) -- ************************** Atsuhito Kohda atsuhito_k AT tokushima-u.ac.jp