I have come across a SQL 2005 server that uses SQL mail to send emails. This setup works fine as long as the MAPI profile points to an Exchange 2003 server, but breaks when the profile points to an Exchange 2010 server. The error: xp_sendmail: failed with mail error 0x80004005
Would updating the MAPI client help fix this, or is an exchange 2010 incompatibility?