[GRLUG] help with setting up email server

[detrix42 at gmail.com]

Hi everyone. I recently set up a web/email server.  I am new to setting up
the email part.  I am using postfix (if there is a better mail server
please suggest it), along with alpine email reader.  My current question is
more about alpine.  When I tried to send a test message, it said I did not
have a tls certificate.  How do I get/set one up?

Also, what do I need to do on my DNS record to that I can get emails. I
tried to send me a test email from my gmail, but it failed.  So what am I
missing?

currently using ubunut server setup.
Jeret
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