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 send or receive e-mail messages: Hostname is not valid. Please set a hierarchical, dot-separated domain as the hostname

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6 comments

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    Til Wegener

    Doesnt work for me. How can i fix it?

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    Alisa Kasyanova

    @Oliver Latson @Til Wegener

    Check the /etc/hostname file: it may be edited manually, so Plesk is showing an FQDN hostname, while in fact it is changed to non-FQDN.

    If /etc/hostname also has an FQDN hostname, please create a request to our support and we will investigate the issue further.

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    Til Wegener

    @... Thank you, that was the solution.

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    Oliver Latson

    Hi Alisa,

    yes I can confirm it also.

    Thank you for your advice.
    I seperately had to install libdbd-mysql-perl but  then I was able to start amavis service and reinstall the Plesk email security extension.

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    Oliver Latson

    Hi there,

    I did your recommended steps but I have and always had an FQDN and after reinstalling the extinsion it still says I would have an invalid hostname.
    Do you have any further suggestions?

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    dicara

    J'ai eu le même chose 

    J ai copier coller le host name toujours rien ..

     

    Puis j ai recopier manuellement sans le point-virgule

    Maintenant tous est ok 

     

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