• Hi, Pleskians! We are running a UX testing of our upcoming product intended for server management and monitoring.
    We would like to invite you to have a call with us and have some fun checking our prototype. The agenda is pretty simple - we bring new design and some scenarios that you need to walk through and succeed. We will be watching and taking insights for further development of the design.
    If you would like to participate, please use this link to book a meeting. We will sent the link to the clickable prototype at the meeting.
  • (Plesk for Windows):
    MySQL Connector/ODBC 3.51, 5.1, and 5.3 are no longer shipped with Plesk because they have reached end of life. MariaDB Connector/ODBC 64-bit 3.2.4 is now used instead.
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    To stay in the loop and never miss an opportunity to share your thoughts, please subscribe to our UX research program. If you were previously part of the Plesk UX research program, please re-subscribe to continue receiving our invitations.
  • The Horde webmail has been deprecated. Its complete removal is scheduled for April 2025. For details and recommended actions, see the Feature and Deprecation Plan.

ssl certificate

  1. ServerObserver

    Issue Let's Encrypt extension can not issue or renew certs: error 400

    Whenever I attempt to issue or renew a Let's Encrypt SSL certificate on any domain connected to the server, I get the following error. ------------------------------------------------------------------------------------------------------ Could not issue an SSL/TLS certificate for...
  2. L

    Question www redirect SSL warning, www not included in SSL cert

    Problem: Some of our clients don't include the www subdomain in the SSL cert because of the extra cost. The problem this creates is that if users go to www.domain.com they will get a SSL warning from the browser, after that they will get redirected to domain.com. Question: Is there a way to use...
  3. J

    Issue Certificate can't be verified

    "The server you are connected to is using a security certificate that cannot be verified. The target principal name is incorrect. If you see this message, it's usually caused by a mismatch in enabling SSL and the port number as entered in your Outlook account settings. " This message occurs to...
  4. B

    Question Installing Let's Encrypt SSL Remotely

    Hello. I am developing my service to automate customers going live. I want to be able to have them install the SSL in our control panel when going live. I am wondering if there is any way, current or if I need to create it, to remotely install a let's encrypt SSL for a specific domain name. I...
  5. M

    FTP with TLS/SSL, certificate is not trusted

    Hello, I'm trying to connect by FTP with TLS/SSL (passive mode) on the single hostings but every time my client (transmit) show me the alert "certificate is not trusted". At the moment I'm using the free Wildcard Let's Encrypt associate with the main domain (e.g. mydomain.com) of the server...
  6. L

    Resolved {Solved}Question about mail server SSL/TLS certificate

    Hello, Let say that my server domain name is toto.com. I've secured the mail with the Let's encrypt certificate for toto.com. I have a subscription on my server for titi.com. I secure the mail for this domain with the Let's encrypt certificate of titi.com. I configure Apple Mail with the IMAP...
  7. F

    Issue Lets Encrypt Wildcard Certificate and non local DNS Server

    Hello, we are updating to the new Plesk Obsidian, there i enabled the Wildcard Support for Lets Encrypt. But we are using external DNS Server, so every Night we get an E-Mail from Plesk Panel with the Following Content: * 'Lets Encrypt domain.de' [days to expire: 86] [-] *.domain.de [-]...
  8. I

    Issue Cant install new license, SSL connection error

    Hi all, we have problems to install new license key. There is a problem with SSL certificate issued by keys server and domain name (SSL_ERROR_BAD_CERT_DOMAIN). Server Info: Centos 7 Plesk 12.0.18 When we try to install new Key, Plesk returns this error: Error: Unable to connect to license...
  9. mixos

    Resolved SSL installed on server pool rather than the desired domain

    Hi all, I purchased a RapidSSL from pleskdomains.com and i installed it on the server repository rather than on the desired domain. Then i noticed that i can't use it on the desired domain rather than just secure the plesk panel. How to move or re-issue the certificate on the domain from the...
  10. Stuart De Usoz

    Resolved Lets Encrypt not working

    I've setup a few domains and subdomain letencrypt certs on a server at Ionos USA , yet it's not working. I have other Plesk servers so I'm rather familiar with process. With this Cenos 6 server I have a few domains but the browser always points to a single domain certificate on the server, no...
  11. J

    Resolved Certificate Outlook

    When i use outlook for my Websites Email, i always get the same error telling me my certficate isn't valid. Then i can still accept or decline it. This error pops up with every start of Outlook. I use Let's encrypt for my ssl Certificates for the Websites. What's the most useful solution to...
  12. C

    Issue SSLCACertificateFile: file '/opt/psa/var/certificates/cert-k1Xu9H' does not exist or is empty

    Hello, I've got a Problem with my webserver-configuration. It's a german message shown in "Webserver Configurations Troubleshooter": Fehler: Aufgrund von Fehlern in den Konfigurations-Templates konnten keine neuen Konfigurationsdateien für den Apache Webserver erstellt werden: AH00526: Syntax...
  13. S

    Question let's encrypt or SSL for a rewritten domain

    I'm using Centos 7 with Plesk (1and1 dedicated server) and Apache and we want to secure all our website with let's encrypt where possible, though we have a problem with 2 domain that has been rewritten with Apache rules. here the code we use to rewrite the domain: ServerAlias...
  14. NateWon

    Question Securing Plesk - Advisor Link

    Hello, I'm attempting to secure Plesk its been running for quite a while with no certificate but am attempting to install one using the advisor link, however its throwing an error Error: Could not issue a Let's Encrypt SSL/TLS certificate for [www.example.com correct site domain.] Your domain...
  15. J

    Resolved Alway using the server SSL instead of Website SSL

    OS ‪Microsoft Windows Server 2012 R2‬ Product Plesk Onyx Version 17.5.3 Update #50, last updated on June 4, 2018 06:24 PM I need help with SSL on Plesk for Windows. basically when I install a SSL using Let's Encrypt everything seems to be perfect in place, the Hosting Settings marks the...
  16. T

    Question No SSL Certificate choice in Hosting Settings 17.5 / WIN

    Plesk 17.5 / Windows Server 2012 Got a problem today, after I change the Log IP Option in Server Statistics Settings my server starten to black out SSL on all Websites. After that I checkt the Hosting Settings in Plesk an found the Certificate Box was missing! The Server starts using the...
    • Timo Iserlohe
    • Thread
    • hosting settings lets encrypt ssl ssl cert ssl certificate windows 2012 r2
    • Replies: 0
    • Forum: Open Topics
  17. F

    Issue Problem with mail server SSL certificate

    Hello everybody, I have a problem to set a SSL certificate to secure the IMAP connection over port 993. I am really not sure what is causing this, but it is really a strange one. There is a SSL certificate issued by Let's Encrypt for the domain itself for https connections using 443 which...
    • Fuchur84
    • Thread
    • imap let's encrypt mail plesk 17.5.3 port 993 ssl ssl certificate wrong cert
    • Replies: 0
    • Forum: Plesk Onyx for Linux
  18. S

    Question SSL-Certificate

    So I recently moved a homepage (wordpress) from a webspace to a linuxserver with plesk. Anything seems to be working as supposed. Then someone installed a lets encrypt for the domain, which works fine. So after one week users told me they are having problem with their mails accounts. So I...
  19. M

    Resolved Two ssl certificates with the same domain (Plesk and single subscription)... conflicts/problems?

    Hello, is possibile to have two ssl certificates with the same domain, one for Plesk (securing Plesk/mail and set to default) and one in the "subscription" for that single domain? I would have this situation to set: in the "tool & settings -> SSL certificates" of Plesk, I've a SSL with SANs...
  20. M

    Resolved Let's Encrypt unable to renew certificates

    Hello, I am getting the following email from my Plesk server: Could not issue/renew Let's Encrypt certificates Could not secure domains of "my server" (login admin) with Let's Encrypt certificates. Please log in to Plesk and secure the domains listed below manually. Securing of the following...
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