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eM Client lets you edit SMTP settings without removing the account. Make sure you have your mySMTP SMTP credentials ready.eM Client lets you edit SMTP settings without removing the account. Make sure you have your mySMTP SMTP credentials ready.eM Client lets you edit SMTP settings without removing the account. Make sure you have your mySMTP SMTP credentials ready.eM Client lets you edit SMTP settings without removing the account. Make sure you have your mySMTP SMTP credentials ready.

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SMTP settings

Shared IP plans are only available to customers in Denmark.

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Configure eM Client

1

Open account settings

In eM Client, go to Menu > Accounts.
2

Select your account

Click the email account you want to configure in the left panel.
3

Open the SMTP tab

Click the SMTP tab to edit the outgoing server settings.
4

Enter the server details

Fill in the fields:
  • Host: your relay hostname (e.g. relayxx.mysmtp.com)
  • Port: 587
  • Security policy: select Use if available or Required for STARTTLS
  • Use authentication: check the box
  • User Name: your mySMTP SMTP username
  • Password: your mySMTP SMTP password
5

Save and test

Click OK or Save to apply the changes. Send a test email to confirm delivery.

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Troubleshooting

  • Cannot send mail: verify the host matches the one in your setup email.
  • Connection fails: check that the port is 587 and the security policy enables STARTTLS. If your network blocks 587, try 2525.
  • Authentication error: re-enter your mySMTP username and password, and confirm Use authentication is checked.
For more error codes, see Common SMTP errors.