system
5
Now I found the good part of the help programm 
This is what I have done in my .ini file
[MailScanner]
DefaultSmtpServer=127.0.0.1:25
DefaultPopServer=127.0.0.1:110
SmtpListen=127.0.0.1:25
PopListen=127.0.0.1:110
ImapListen=127.0.0.1:143
ShowTrayIcon=1
UseDefaultSmtp=0
AutoSetProtection=0
My Mailserver is working again but I still see no line of Avast! in my e-mails