I’ve set up mail server as described here: how-to-configure-a-mail-server-using-postfix-dovecot-mysql-and-spamassasin, but I still can’t send email neither from my web-sites nor from CLI with simple echo 'This is a test' | mail -s 'test-out' me@mail.com command
I’ve digged a lot, but still can’t find out where is the problem, any ideas?
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Can you check if you’re able to connect to port 25 on remote servers?
Are there any errors in your mail error log?