To enable encryption (SSL/TLS) in your email program, simply do the following:
Open the mailbox settings in your email program.
Enable SSL/TLS encryption for the mailbox.
Use the following ports for the incoming and outgoing mail server:
POP3 (SSL/TLS): 995
IMAP (SSL/TLS): 993
SMTP (SSL/TLS): 465
In the sections below, we'll describe the procedure in more detail for some common email programs.
If you are using a different email program, we recommend that you check with the manufacturer to see if that program supports TLS 1.2 or newer. If the email program you are using does not support TLS 1.2 and newer, you will not be able to use it to connect to the email server to send and receive messages after TLS 1.0/1.1 and unencrypted IMAP/POP3/SMTP connections are disabled.
Enabling Encryption in Microsoft Outlook 2016/2019 (Windows)
How to enable encryption in Microsoft Outlook 2016 and Microsoft Outlook 2019 is explained in the following article:
Enabling Encryption in Mozilla Thunderbird
Instructions on how to enable encryption in Mozilla Thunderbird can be found here:
Enabling Encryption in Apple Mail
How to enable encryption in Apple Mail is explained in the Enabling SSL Encryption section of the following article:
Enabling Encryption in an iPhone/iPad
Instructions on how to check your email account settings in an iPhone/iPad and enable encryption can be found here:
Enabling Encryption in Android
How to enable encryption in the Gmail app or in Samsung's email app is explained in the following article:
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