Fetching emails Nr. 2323123

Hello everybody,

i have a little issue. i configured ingoing mails via imap, and its working. BUT only if i click on "save changes" at "Admin Panel/Emails/Settings". I don´t receive mails automatically.

Settings in "Fetching Mail via Imap"

Fetch Frequenzy=1 minutes
Emails Per Fetch=20
Fetched Emails: delete mails

Email Settings and Options:

Email Fetching: Enable
Strip Quoted Reply: Enable
Accept All Emails

PHP: 5.6.29
Debian: 8.7