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How to secure a Plesk mail server with an SSL certificate (Let's Encrypt / other certificate authorities) – Plesk Help Center
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How to secure a Plesk mail server with an SSL certificate (Let's Encrypt / other certificate authorities) – Plesk Help Center
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How to assign a SSL certificate per domain to secure the mail server in Plesk (SNI support)? – Plesk Help Center
![How to configure a secure connection when setting up a Plesk email account in an email client – Plesk Help Center How to configure a secure connection when setting up a Plesk email account in an email client – Plesk Help Center](https://support.plesk.com/hc/article_attachments/360023314554/Screenshot_2018-09-17_Change_Properties_of_SSL_TLS_Certificate_server_example_com_-_Plesk_Onyx_17_8_11.png)
How to configure a secure connection when setting up a Plesk email account in an email client – Plesk Help Center
![How to configure a secure connection when setting up a Plesk email account in an email client – Plesk Help Center How to configure a secure connection when setting up a Plesk email account in an email client – Plesk Help Center](https://support.plesk.com/hc/article_attachments/360023314534/Screenshot_2018-09-17_SSL_TLS_Certificates_-_Plesk_Onyx_17_8_11.png)
How to configure a secure connection when setting up a Plesk email account in an email client – Plesk Help Center
Mail client shows warning connecting to Plesk mail server: the server to which you are connected uses a security certificate that can not be verified. The main destination name is not valid –
![How to secure a Plesk mail server with an SSL certificate (Let's Encrypt / other certificate authorities) – Plesk Help Center How to secure a Plesk mail server with an SSL certificate (Let's Encrypt / other certificate authorities) – Plesk Help Center](https://support.plesk.com/hc/article_attachments/360029679194/Screenshot_2019-03-26_Secure_Plesk_With_a_Let_s_Encrypt_Certificate_-_Plesk_Onyx_17_8_11.png)
How to secure a Plesk mail server with an SSL certificate (Let's Encrypt / other certificate authorities) – Plesk Help Center
![How to assign a SSL certificate per domain to secure the mail server in Plesk (SNI support)? – Plesk Help Center How to assign a SSL certificate per domain to secure the mail server in Plesk (SNI support)? – Plesk Help Center](https://support.plesk.com/hc/article_attachments/360039567853/mceclip0.png)