✓ Solved

Can't send or receive mail (My ports are unblocked)

email postfix dovecot

My ports were unblocked by Linode staff, that's not the issue here

I'm trying to host a mail server on my Linode. I got everything setup, and can login with my email client. However, I can't receive or send any mail.

When I send mail, I get a temporary lookup failure. Why is this?

I figured out the issue, for some reason I'd put localhost for my things like /etc/postfix/mysql-virtual-mailbox-maps.cf instead of 127.0.0.1.

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