after filling in my subscription form i always get the following error:
error closing /usr/sbin/sendmail: (exit 768)
For help, please send mail to the webmaster ([email protected]***), giving this error message and the time and date of the error.
I thought this might be a configuration error, but i can't find a prob.
sending mails to hand-inserted-receivers works perfectly.
any idea to help me with`?