• Please be aware: Kaspersky Anti-Virus has been deprecated
    With the upgrade to Plesk Obsidian 18.0.64, "Kaspersky Anti-Virus for Servers" will be automatically removed from the servers it is installed on. We recommend that you migrate to Sophos Anti-Virus for Servers.
  • 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.
  • We’re working on enhancing the Monitoring feature in Plesk, and we could really use your expertise! If you’re open to sharing your experiences with server and website monitoring or providing feedback, we’d love to have a one-hour online meeting with you.

mail certificates

  1. R

    Issue SSL/TLS cert for mail server not updating (Lets Encrypt)

    It seems Plesk has some issues renewing the TLS certificate which is used by the mail server. In my setup I have: Domains: - domain.tld - mail.domain.tld (only used for the certificate) Mail server - on domain.tld (for mails like [email protected]) - SSL/TLS certificate for mail: Lets Encrypt...
  2. K

    Question What does this domain setting do: "SSL/TLS certificate for mail "

    There is a documentation page Mail Settings of Domains but it doesn't say what this setting does. (Maybe someone from Plesk cares about this - but unfortunately experience suggests that that is low probability). Does anyone know what this setting does? Does it encrypt email I send from this...
  3. Y

    Resolved Mail doesn't work - Help needed

    I just found the Plesk forum while searching help regarding the problem of receiving and sending email using Plesk. Anyways, I started using Plesk, for the first time, two days ago in my VPS. I've set my website, the hosting, and then, I created my email account. However, when I tested it using...
  4. H

    Question How to host mail server in Plesk but domain with Squarespace, but SSL secure IMAP and webmail?

    As described in the title.. I have mydomain.com. The DNS server for mydomain.com is Cloudflare. The A record for mydomain.com points to my Squarespace website. I want to use Plesk for mail, but I cannot add a wildcard/mail domain SSL to secure webmail.mydomain.com and Mail access (IMAP, POP...
  5. T

    Question Secure mail.customerdomain.com with Let's Encrypt certificate with no hosting

    I have a service plan where hosting is disabled and mail is enabled. Now when I request a Let's Encrypt certifcate (with SSL It!) I only get the option to request a certificate for webmail.customerdomain.com, not for securing the mail, which the customer can reach with mail.customerdomain.com...
  6. C

    Resolved Certificate for Mail on windows

    I need to add a mail certificate to a subscription. We have found this undocumented command that works fo linux "plesk bin subscription_settings --update DomainName -mail_certificate 'certificate_name'" in one of the plesk forums, but we can't find how to do it on windows, we have tried this...
  7. G

    Resolved How to check if Let's Encrypt is enabled for domain mail service via command line

    Hello, is there a way (via CLI) to find out if the Let's Encrypt certificate (active for a domain) it also protects the mail service?
  8. Lexz

    Issue BUG: Certificate not assigned to mailserver (mail.) over ipv6

    Good afternoon, We are experiencing a big issue on all our servers. Customers who are using mail.<domainname>.com as there mailserver don't have a valid certificate on ipv6 in their mailclients (port 993 / 465). We use the Plesk DNS with wildcard certificates from Lets Encrypt. On ipv4...
  9. nisamudeen97

    Resolved Getting Hostname "does not" match on mail SSL

    Hi, Recently I have updated plesk to Obsidian. Plesk version used :- Plesk Obsidian 18.0.20 Update #2 , last updated at Nov 7, 2019 06:27 AM. I have around 15 domains hosted in the server and using letsencrypt SSL for all including plesk. I have used tools & settings >> ssl-certificate...
  10. A

    Question SSL Mail

    hello I habe a question about Mail and SSL. I hava bought me a RapidSSL Certification und uploaded this on plesk. So when I set a Mail account with this Parameter on my Mac with Outlook and Mail App imap.mydomain.com smtp.mydomain.com The I have to trust the certification. But I don‘t want do...
  11. nsj

    Question Wildcard SSL certificate not working on mail.domain.com

    Hi We renewed our Wildcard SSL certificate on one of our domains and uploaded it like we normally would in the Plesk domain. But now we get an SSL error when we try to recieve and send emails on the phone via the domain mail.domain.com. We have tried a lot to get it to work, but nothing has...
  12. Jay Versluis

    Issue Plesk serves expired Mail certificates despite updated ones being installed

    Hello all, I have a rather weird issue with securing mail on a Plesk Onyx system. Recently, my mail certificates expired. So I thought, time to renew it. At first I tried doing this with the same CSR as before, just getting a new certificate and replacing it in Plesk, leaving the CA certs...
  13. campsjos

    Resolved SSL certificates for mail server

    I configured my server to have "mail.serverhostname.tls" as secured mail server and works as expected. However, I have not succeeded configuring my domains to have "mail.mydomain.tls" also secured. The problem is that I need to migrate a lot of customer sites and domains from a non-plesk server...
  14. S

    Issue Self-Signed Certificate don't work on port 993

    Hi Plesk Community, I have a very strange problem which get me stuck for days now. On 6 december my certificate got expired and I had to make a new Self-Signed Certificate so mail and Plesk Panel etc. don't give the expired warning. Everything went OK and the new certificates are valid for...
  15. AmaZili Communication

    Question Let's Encrypt Enhanced mode with aliases support

    Hi, I want to say first thank you for the good work already done by the plesk team on providing an easy way to get online with free certificates through Let's Encrypt. If you read this thread : https://github.com/plesk/letsencrypt-plesk/issues/28 or this thread ...
  16. J

    Issue Mail default SSL certificate

    Hi, I enabled mail for all clients on my Plesk 12.5 server. When an mailadress is added to a mail client, there is a popup each time for the SSL certificate. This because the certificate is not trusted and the user needs to connect/trust the certificate mannualy. I use Postfix for mail and...
  17. Pedro Reinoso

    Email are being moved to JUNK (Hotmail, Yahoo, Gmail)

    Hi everyone, The issue i'm presenting is that when i send an email to my account HOTMAIL, the email is being received on JUNK folder, Version : Plesk 12.5.30 Please if you need another information just ask me, thanks for you help. Regards
  18. Jay Versluis

    Mail Certificates: An interesting puzzle

    Hello all, I was working on a Plesk 12.5 server running CentOS 6.7 yesterday. I’ve patched the mail certificates for Courier as outlined in the KB article (https://kb.odin.com/en/1062). This has worked flawlessly many times before on other systems, but not this time. Even though a TLS check...
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