Xp_readmail Truncates Message

I am using (or trying to) xp_readmail to import email into a table for further processing. I am using the following line to bring the email into a table (this is part of a larger stored procedure):

insert email_import exec master.dbo.xp_readmail

However, the email message is always truncated at 250 characters.

BOL says:

[@message =] 'message' Is the returned body or the actual text of the mail message. message is text, with no default.

I am at a loss here and I really need to get the entire message body into the imprt table so that I can parse the subject line to identify the row in the destination table to update with the email message body. Anybody have any ideas?? Thanks...