Check_MK Werk 4193: check_mail: Fixed bug with fetching mails

ID: 4193 Title: check_mail: Fixed bug with fetching mails Component: Checks & Agents Level: 1 Class: Bug Fix Version: 1.4.0i4 Previously the active check was not able to handle response messages containing more information than expected. Additionally the check was not closing the connection afterwards, so the messages never have been deleted.