TYPO3 Core

I have a system (ubuntu 12.04) without sendmail installed.

Sending mails out of the installtool works fine via smtp.

Nevertheless the System environment reports an error:

Mailprogram not found or not executable
sendmail_path = /usr/sbin/sendmail -t -i This may be critical to TYPO3's use of the mail() function. Please be sure that the mail() function in your php-installation works. If installation is completed, the mail system can be tested in the install tool.

And as a consequence the Report says that the system environment check returned errors.

As soon as i install sendmail (apt-get install sendmail) the errors are gone.
After removing sendmail completely, the error reappears.

Best Regards
Renzo Bauen
conPassione gmbh
www.conpassione.ch