Mac Mail Certificate warning / Mac Mail แจ้งเตือน Certificate warning

          A secure connection is possible on incoming e-mail (IMAP and POP3). If you used an unsecured connection when you created the account, Mail may still change the connection to secure (SSL). However, it is important to set the incoming server name correctly in order to avoid receiving a Certificate warning.

Change server name to Mail

In this example we use "cloudnice.managedomain.nl".

You can then enter this server name in Mail. To do this, click on Mail-> Accounts at the top left. Select the e-mail account that matters ( info@mydomainname.nl ). Click on Advanced now. You can change the server name here.

Alternative: Accept certificate

Accept the * .managedomain.nl certificate once if Mail shows the Certificate warning. Click on Show Certificate (Show certificate) -> Click Trust (Trust) and select Always Trust. Then click Connect.

Alternative 2: no TLS

          If the above does not work, you can also disable security. We do not recommend this, especially if you are often on the road with the computer. If you are on a home connection and nothing works, it can be a (temporary) solution.

          This can be done via Mail-> Preferences. Here you see the overview of your e-mail addresses if you have more than one. Click on the e-mail address that you are referring to, and click on the Advanced tab. Now tick "Use SSL (Use SSL)". Click on the red cross and choose Save to save the settings.