Morikawa-san, Okey, then your conf should be right.
Did you try the conf below which was noticed by Gedalya? auth_default_realm = example.co.jp Kouga -----Original Message----- From: 森川 孝司 <morikawa...@itec.hankyu-hanshin.co.jp> Sent: Wednesday, October 28, 2020 4:28 PM To: 林 宏河 <haya...@progdence.co.jp>; dovecot@dovecot.org Subject: RE: dovecot quota-warning detection mail kouga-san After copying and pasting, something went wrong. Actually "quota_warning = storage=95%% quota-warning 95 %u" It is set in. (In fact, I usually receive a notification email.) Thank you. -----Original Message----- From: dovecot [mailto:dovecot-boun...@dovecot.org] On Behalf Of Koga Hayashi Sent: Wednesday, October 28, 2020 1:58 PM To: 森川 孝司 <morikawa...@itec.hankyu-hanshin.co.jp>; dovecot@dovecot.org Subject: RE: dovecot quota-warning detection mail Morikawa-san, Your conf is wrong. Should be: quota_warning = storage = 95 %% quota-warning 95 %u Your conf: quota_warning = storage = 95 %% quota-warning 95% u There's a space between % and u. First of all, try the above and let us know if it changes. Kouga