Something like this:
select blocked from dbo.sysprocesses -- where blocked > 0
IF sysprocesses.BLOCKED > 0
EXEC xp_sendmail @recipients = 'user@company.com',
@query = 'Select * from sysprocesses where blocked > 0',
@message = 'Processes are blocked on IPDOCKET01',
@subject = 'Processes are BLOCKED',
@attach_results = 'TRUE'
Ashley L Rickards
SQL DBA