Remove Saved Password in Mac Mail 2.x.
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You've changed your Access Account password and now can't check e-mail with Mac Mail 2.x.
To change your stored password in Mail 2.x on an OS X Mac :
1. Launch the Mail application.
2. Select the Mail menu and choose Preferences from the list.
3. The preferences window will open. Click the Accounts icon.
4. In the Accounts column on the left side of the window, highlight your account and then click the Account Information tab.
5. Type your new password in the Password: field located at the bottom half of the Accounts window.
6. Click the OK button.
7. Click the red button in the upper left corner to close the preferences window. You will be prompted to save your changes; click the Save button.
MAC OS X: For more problematic issues - Use the "Keychain Utility" in the "Utilities" folder under "Applications".
1. Launch the Mail application.
2. Select the Mail menu and choose Preferences from the list.
3. The preferences window will open. Click the Accounts icon.
4. In the Accounts column on the left side of the window, highlight your account and then click the Account Information tab.
5. Type your new password in the Password: field located at the bottom half of the Accounts window.
6. Click the OK button.
7. Click the red button in the upper left corner to close the preferences window. You will be prompted to save your changes; click the Save button.
MAC OS X: For more problematic issues - Use the "Keychain Utility" in the "Utilities" folder under "Applications".