config option --read-envelope-from might be needed for mailing

[dennisexozet]

Hi,

we faced the problem that sending the mail died silently until we added the --read-envelope-from option to the PHP_SENDMAIL_PATH resulting in the config

PHP_SENDMAIL_PATH=/usr/bin/msmtp -t --host=mailhog --port=1025 --read-envelope-from

Maybe you should mention this in the docs.

We're using the image exozet/php-fpm:7.2.9-sudo.

Greetz, Dennis

[OskarStark]

Is this still relevant, and would you provide a PR?