[MerryDeer]

No body give me function

I found at least:

Code:

stock IsCorrectMail(mail[])
{
	new len = strlen(mail), bool:find[2], w;
 	if(!(6 < len < 129)) return false;
  	for(new l; l < len; l++)
  	{
   		if(mail[l] == '.') find[0] = true;
     	if(mail[l] == '@')
      	{
       		if(find[1]) return false;
         	find[1] = true;
          	w = l;
           	if(w > 64) return false;
       	}
        if(!(mail[l] >= 'A' && mail[l] <= 'Z' || mail[l] >= 'a' && mail[l] <= 'z' || mail[l] >= '0' && mail[l] <= '9' || mail[l] == '.' || mail[l] == '-' || mail[l] == '_' || mail[l] == '@')) return false;
   	}
    if(len - w > 65) return false;
    if(!find[0] || !find[1]) return false;
    return true;
}

But how to upgrade this function how i mention check i want allow just from @gmail.com, @yahoo.com just some what i specified.