Mail() PHP not sending mail via Postfix? mail() returns 1, everything is fine with the logs. Why?

Question

PHP

Please help me again. Maybe I'm a bit dumb already (it's already 1 am) The problem is that PHP doesn't send the message via Postfix, unlike sendmail. BUT: if you write the send command through the console, then everything works, most likely the problem is on the PHP side. sendmail_path is currently /etc/postfix, tried /etc/sendmail, postfix, and sendmail. Nothing works, even though mail() returns 1. What to drop? Configs, logs just in case? If you decide to help, I took out my brain to put it mildly ...

Answer 1

sendmail_path = /usr/sbin/sendmail -t -i
make sure that sendmail is in this path on your system