Multiple host alerts grouped in one email ?

list Ken Connell
Tue, 7 Feb 2012 18:54:10 +0000
Message-Id: <user-ad49e80ff101@xymon.invalid>

Can I group multiple alerts that happen at the same time for different hosts into one email ?
   
Ken Connell
Intermediate Network Engineer
Computer & Communication Services
Ryerson University
XXX Victoria St
RM AB50
Toronto, Ont
M5B 2K3
XXX-XXX-XXXX x6709