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What Is The SSL Trust Error In Email Apps? Email Security SSL Verification

An SSL Certificate is a file issued by a trusted third party that verifies you have connected to a legitimate server and not an imposter trying to steal your data. When an SSL connection is made with a server, the server provides the certificate to the computer connecting to it. The computer then analyzes the certificate to verify the identity of the server.

All SSL certificates eventually expire and must be reissued. When this happens, your computer or email application may not recognize the new one. In some cases, you'll be prompted to approve the certificate manually or cancel the connection; in others, it simply won't connect.

Each email application handles this differently, so we'll show you how to accept the new SSL in your application.

Verify the Certificate in Mac Mail

The identity of "mail.example.com" cannot be verified. If you're receiving this or a similar error in Mac Mail, follow these steps:

  1. When you get the error message, click Show Certificate.
    Mac Mail show certificate
  2. Check the box to always trust the certificate.
    Mac Mail trust certificate
  3. Click Connect.

Trust the Certificate in iOS.

Cannot Verify Server Identity. The identity of "mail.example.com" cannot be verified by Mail. Review the certificate details to continue If you're receiving this or a similar error on your iOS device, follow these steps:

You can locate the box### from your email settings. To navigate there, follow these steps:

  1. When you get the error message, tap Details.
    IOS Error Details
  2. Tap Trust in the top right corner.
    IOS Trust SSL
    If Steps 1 and 2 do not resolve the issue, proceed to Step 3.
  3. Change Host Name from mail.domain.com to box###.Bluehost.com (If Host Name is already the box###, change to mail.domain.com).
    IOS Settings
    1. Log in to your cPanel.
    2. Click email at the top of the screen.
    3. Click email configuration from the menu on the left.
    4. Select one of your email accounts from the drop-down menu. The box### will be listed under Private with SSL settings on the incoming and outgoing mail server.

If the Trust button is missing or greyed out, continue to the steps below: 

Option 1: Turn off SSL, change to Port 26, and verify email can be sent.
  1. Navigate to Settings, then select Accounts and Passwords.
    IOS Accounts and Passwords
  2. Select your email account.
    IOS Choose Email
  3. Select SMTP (Outgoing Mail Server).
    IOS SMTP Server
  4. Select Primary Server.
    IOS Primary Server
  5. Toggle Use SSL off, and change the Server Port to 26.
    IOS with SSL Off
  6. Press Done in the upper right corner.
To finish the reset, restart the email client and turn SSL back on.
  1. Double-click the Home button and swipe up. This will close your email client.
  2. Refer to steps 1 through 4 above to navigate to your Outgoing Server settings.
  3. Toggle the Use SSL option on.
  4. Press Done in the upper right corner.
Option 2: Add the SMTP Server back in as new.
  1. Navigate to Settings, then select Accounts and Passwords.
    IOS Accounts and Passwords
  2. Select your email account.
    IOS Select Email Account
  3. Select SMTP (Outgoing Mail Server).
    IOS SMTP Server
  4. Select Add Server...
    IOS Add Server
  5. Enter hostname. This is mail.yourdomain.com (substitute ‘yourdomain.com’ with your actual domain name).
  6. Enter the username (your full email address).
  7. Enter the password (for the email address in question).
  8. Press Done in the upper right corner.
  9. Once verified, you will be brought back to the SMTP Server page. Select the Primary Server.
    IOS Primary Server
  10. Toggle the Primary Server off, then press Done in the upper right corner. This will force the newly added server to take over mail handling.
    IOS Toggle Server

Reinstall the Certificate in Outlook

If you are connecting to Bluehost with Outlook and getting the SSL error to follow, these steps to make your computer trust the certificate. 
  1. Click the View Certificate button.
    Outlook View Certificate
  2. Click Install Certificate.
    Outlook Install Certificate
  3. Next, you will see the import wizard. Leave current user-selected and click next.
    Outlook Import Wizard
  4. Choose "Automatically select the certificate store based on the type of certificate."
    IOS Certificate Store
  5. Click Finish.
  6. Click Yes to continue connecting.

For further assistance, you may contact our Chat Support or Phone Support via 888-401-4678. You may also refer to our Knowledge Base articles to help answer common questions and guide you through various setup, configuration, and troubleshooting steps.