Fixing email problems on Direct Admin

If you're having trouble sending and receiving emails on Direct Admin, you should check the following items.

Nameservers - check this first!

Ensure that your domain's nameservers are set to the following:


If they are not set properly, your website will not work and your email will not load.

Please allow a few hours for this the changes to take effect.

Not receiving email - MX Records

Please make sure that your MX records point to your server.

Visit the MX Records page in your Direct Admin control panel, go to the "MX Template" dropdown and set it to "Local Default". If it's already set on that, you can re-set it to the same value to ensure the changes are applied.

Not receiving email (550 Authentication Required)

Visit the MX Records page in your Direct Admin control panel, and make sure the "Use this server to handle my e-mails" checkbox is checked. If this is not checked, you will get the error "Undelivered Mail Returned to Sender (550 authentication required)" when people send you email.


Check your webmail & accounts

You should check to see if your email is working webmail, to ensure that you're not just facing an issue with your email client.

You can access webmail at this URL:

You can login with your email username and password. If you can't login, visit the E-mail Accounts page in your Direct Admin control panel and ensure that you have the e-mail account created. If this e-mail is for an addon domain, ensure that you've selected it from the domain dropdown in the top right before visiting the E-mail Accounts page.

E-mail Client Setup

If the email works fine via webmail, then check your e-mail client configuration. We have a guide for a few e-mail clients here here. Please ensure that your email client hostname/server is, and experiment with the different SSL settings to see if you can find a working combination. If all of these combinations have failed, you can also try using as the connecting hostname.

Here is a template of some standard port & SSL combinations that you can have success with:

  • Type: POP3 (Inbound)
  • SSL: Disabled/Plaintext
  • Port: 110


  • Type: POP3 (Inbound)
  • SSL: Enabled
  • Port: 995


  • Type: IMAP (Inbound)
  • SSL: Disabled/Plaintext
  • Port: 143
  • Type: IMAP (Inbound) - Recommended
  • SSL: Enabled
  • Port: 993


  • Type: SMTP (Outbound)
  • SSL: Disabled/Plaintext
  • Port: 25


  • Type: SMTP (Outbound) - Recommended
  • SSL: Enabled
  • Port: 465
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