2.24.2.7.2. Configuring the correct authentication in the Mail app (macOS)
When a mail client connects to a mail server to receive or send mail, authentication is used for security purposes. There are different authentication methods. One of the options could be CRAM-MD5 or APOP, which are currently outdated and insecure. Here's how to check your current settings and set up a more modern and secure authentication method.
Procedure
- Launch the Mail app.
- In chapter "Accounts" on the left, select the account you need, switch to the tab "Server settings" and check the settings:
- Incoming mail:
- "Configure connection parameters automatically" - the check mark should be removed.
- Connection security:
- When using IMAP (above is "Incoming mail server (IMAP)"):
- For an encrypted connection — specify the port
993
and check the box next to "Use TLS / SSL". - For unencrypted connection — specify the port
143
and uncheck the box opposite "Use TLS / SSL".
- When using POP3 (above is indicated "Incoming mail server (POP)"):
- For an encrypted connection — specify the port
995
and check the box next to "Use TLS / SSL". - For unencrypted connection — specify the port
110
and uncheck the box opposite "Use TLS / SSL".
- "Authentication" — meaning necessarily should be "Password".
- Outgoing mail ("Outgoing mail server (SMTP)"):
- "Configure connection parameters automatically" - the check mark should be removed.
- Connection security:
- For an encrypted connection — specify the port
465
and check the box next to "Use TLS / SSL". - For unencrypted connection — specify the port
25
or2525
and uncheck the box opposite "Use TLS / SSL".
- "Authentication" — meaning necessarily should be "Password".
- Save your changes and test your mail.