TYPO3 Core

the install-tool display a confirmation like: Mail was sent to: banana@domain.org
there is no email and an error message in the log (s. below)

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15-06-10 20:27 - Core: Mail to "" could not be sent (Subject: "TEST SUBJECT")
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It looks like t3lib/utility/class.t3lib_utility_mail.php does not correctly use the email-address input from the install-tool (Basic Configuration).

Typo3 4.3.3 on the same server sends correctly testmails (using testmail in the install-tool)

regards
Mark

Sendmail OK

sendmail_path=/var/www/itinfra_comch/execdir/sendmail -t -i

You can check the mail() function by entering your email address here and press the button. You should then receive a testmail from test@test.test.
Since almost all mails in TYPO3 are sent using the t3lib_htmlmail class, sending with this class can be tested by checking the box Test t3lib_htmlmail below. The return-path of the mail is set to null@srv1.born2b3.net. Some mail servers won't send the mail if the host of the return-path is not resolved correctly.
(issue imported from #M14742)