[Abagail]

Change

pawn Код:

if(strfind(inputtext,"@",true) != -1)

to

pawn Код:

if(strfind(inputtext,"@",true) ==0)

And to check if the string is null use isnull. If you're not using ZCMD, - you'll have to include it yourself,

pawn Код:

#if !defined isnull
    #define isnull(%1) \
                ((!(%1[0])) || (((%1[0]) == '\1') && (!(%1[1]))))
#endif