On October 19, 2021, we have enabled single-sign-on for our Plesk Support Center to provide a seamless login/account experience. This implies that you’ll be able to use a single account across any of our web-facing properties.
If you had already registered your account at Plesk 360 (formerly known as My Plesk) please use one for login. Otherwise please re-register it using the same email address as your existing Zendesk login (support account). It’s essential that you use the same email address on our support center to ensure that your tickets stay attached to the same account.

Unable to configure External SMTP Server with a non-email address login in Plesk: Unable to encode IDN email address 'jdoe'




  • Avatar
    Alexander Bonacci

    So i maybe get this wrong, but I add the settings but it gives me the error mentioned. So do I go to cmd and add the line of code, but that only adds the username, but where do i add the rest?

    I am trying to use sendgrid and its a username and not an email. I might understand it wrong. But if i do this, thing happens afterwards, and sendgrid cant see my pleskserver

    Comment actions Permalink
  • Hi Alexander Bonacci,

    Good question, but as far as I can see in the tickets related to this bug, it seems that the data should be saved in DB, then it's required to update the username.

    If this bug still happens to you and you can't apply the workaround, please open a Support request here so that we can investigate.

    Comment actions Permalink

Please sign in to leave a comment.

Have more questions? Submit a request