I have setup an Ubuntu 20.04 server to only use SMTP and send email from this server, but I am facing an issue that when
spamassassin is stopped,
postfix does not try to send anything, while when
spamassassin is enabled I see mail queue is decreasing and postfix logs show me the sending.
Also when it's sending, send rate and speed is slow, about 1 to 10 per minute, while I did not set any limits and I checked
/etc/postfix/main.conf and there was nothing to limit.
I see no errors in
/var/log/mail.err and nothing happens in
spamassassin is not enabled.
Would you please help me?