A while ago, following this guide https://www.howtoforge.com/tutorial...l-pureftpd-bind-postfix-doveot-and-ispconfig/ I installed ispconfig on ubuntu 20.04 and i haven't installed the mail server part. Today, still following the same guide, I added the missing packages to enable the mail server part. Unfortunately when I try to send email I get this error: Temporary lookup failure What information could be useful to help me solve the problem?
Most likely you have not configured ISPConfig with the e-mail software. Run a ISPConfig update, enable the email services, and let it reconfigure services. Use this command to do the update: Code: ispconfig_update.sh --force