On the Motorola Droid I was successfully getting my corporate email for a year with no problems. On 11/09/2010 I started getting a security error when trying to retrieve email in the native Android Mail app. I tried tweaking a couple settings but ended up deleting my account credentials in order to re-enter them in an effort to bypass the security error. I know get an error every time I enter my account credentials and attempt to connect to our corporate exchange server.
I go through the following steps:
Open the mail app Enter email address and password Press Manual setup Press Exchange Modify Domain\Username and Server to contain correct corporate information Insure "User secure connection (SSL)" and "Accept all SSL certificates" are checked Press Next App says "Checking incoming server settings" Message pops up "Sorry! The application Email (process com.android.email) has stopped unexpectedly. Please try again."
No combination of rebooting, clearing Mail app data and changing of SSL selections allows me to bypass this error.
UPDATE According to Motorola Level 2 technical phone support the only solution to this issue is to restore the phone to it's factory settings.