It sounds like your rule has forgotten to set at least one of the condition fields as "when this field changes"? ie you've checked for STATUS=Resolved but without the tick box so every time the call is amended while in that state it sends another email?
Hi Metin, I think Mike is right. Take a look in history lines to see what happend after the first status changed to "Solve" You could have some surprises! May be other people update some information in service call with same status unchanged (Solved). Regards, Dan