TYPO3 Core

The mails "Install Tool Login ATTEMPT" and "Install Tool Login" can't be delivered.
Some SMTP-Server (like ours) may block these emails, because the return email domain is invalid: domain name TYPO3 Install Tool WARNING <> has invalid syntax

This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its recipients. This is a permanent error. The following address(es) failed:
SMTP error from remote mail server after end of data:
  host xxxxxxx.de [xxx.xxx.xxx.xxx]: 554 5.7.1 This message has been blocked because the return email domain is invalid.(domain name  TYPO3 Install Tool WARNING <> has invalid syntax)

According to Forge-Issue #17674 it's caused by a typo in file typo3\sysext\install\mod\class.tx_install.php function checkPassword(): the empty from-email-address ('From: TYPO3 Install Tool WARNING <>').

I substitute this from-header with this one (at both mail-calls within this function):
'From: TYPO3 Install Tool WARNING <' . $GLOBALS['TYPO3_CONF_VARS']['MAIL']['defaultMailFromAddress'] . '>'