Global Parameters: changes in Mailing Parameters are not stored - by: NorbertD

Hello

i have installed Version 7.1.1 with PHPMAiler 6.0.3.
the Parameters which i change in the form Mailing parameters are not stored. after leaving the form and if i come back the Default is back.
also after i Input the new Parameters (esp. my SMTP Server) test mail give back "SMTP Connect failed" but i can Telnet port 25 our SMPT Server from this machine

thank you for your help

greetings
Norbert