I am using OJS 3.1.2-1 under Ubuntu 18.04 bionic with postfix. I’ve tested postfix and it works perfectly. However, when I do a submission, the OJS server notices me that there was a problem sending an email message. I checked the terminal and it shows me
Invalid address: (From): root@localhost.
What’s more , I checked the php mail log and there are no error information. After that I’ve tried to switch force_dmarc_compliant_from, force_default_envelope_sender and allow_envelope_sender to “On” and uncomment. But it doesn’t work.
How can I fix it?