How to configure a secure connection when setting up a Plesk email account in email client

To set up an account with secure connection to the mail server in an email client, follow these steps:

  1. Make sure a valid SSL certificate is assigned to the mail server in Plesk at Tools & Settings > SSL/TLS Certificates and domain's name in the certificate is the same as the name of Mail server.


    Screenshot_2018-09-17_SSL_TLS_Certificates_-_Plesk_Onyx_17_8_11.png

  2. Click on the certificate name to find out for which domain name it was issued.


    Screenshot_2018-09-17_Change_Properties_of_SSL_TLS_Certificate_server_example_com_-_Plesk_Onyx_17_8_11.png

  3. When a valid SSL certificate is set up for a mail server and domain name is known, during configuration in a mail client, specify incoming and outgoing mail server name as domain name from step 2.

    • Incoming server

      • IMAP - use port 993 with SSL type.

      • POP3 - use port 995 and enable the option This server requires an encrypted connection (SSL), if available.

    • Outgoing server (SMTP) to use port 465 (or 587 if the submission port is enabled) with SSL or TLS type (depends on the server configuration).

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