Pertinent PHP Settings: SMTP: localhost sendmail_from: None sendmail_path: /usr/sbin/sendmail -t -i Diagnostic Results: No errors were returned while attempting to send the email. Check email@example.com shortly to confirm you've received the email. If you don't receive the email, try sending the test to a different address. If that fails, check your mail server's configuration.
I have no clue, please help me fix this issue, it's emergency because the server is on production site.
I tried to use sendmail -f but also not worked.
I posted this issue to Support Ticket already.
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