title: Zpanel - Mail Configuration
body: <p>I am trying to configure emails within my zpanel portal and I am running into problems accessing email from external clients like Thunderbird or Android Email. I set up the Mailbox and it works perfectly to send/receive emails if I use roundcube but how do I configure my VPS or ZPanel to allow to send/receive email from external clients?</p>
  
  <p>I've heard something to do about MX Records. I have not idea how to configure those. I've also heard about opening ports but don't know which ones I need to open or if I have to install additional things. </p>
  
  <p>Looking forward to your reply!</p>