Help! MAIL CRASHING upon launch

Question

I let my automatic updater update my OS X.4.10 (was it .9 before?) system. Now whenever I try to launch Mail, it crashes within a few seconds. I ran my Disk Utility application to verify my disk (not permissions), as posted on another thread. No problems were found. So I reinstalled the update. Same problem. Mail crashes upon launch. HELP!!!

Answer 1

For what type of account - .Mac, IMAP or POP?
You can try to stop the fetching process via the Activity Viewer window but this will not resolve the problem when the fetching process resumes.
Assuming you have webmail access for this account, you can delete some of the messages available at the incoming mail server or if you can create server stored mailboxes for this account via webmail access, transfer a large portion of the messages available in the account's Inbox mailbox to the server stored mailboxes to reduce the number of messages available to be downloaded by Mail.
After the Mail.app download process has completed for a smaller number of messages, you can gradually transfer messages from the server stored mailboxes to the account's Inbox mailbox reducing the number of new messages to be downloaded by the Mail.app at one time.
Over 4000 messages in the account's Inbox mailbox at the server is a good deal of messages. Either this account is an IMAP type account with a large server storage space quota or if a POP type account, the server storage space quota must be large.