schema
schema: ZodObject<{ 
    bcc: ZodOptional<ZodArray<ZodString, "many">>; 
    cc: ZodOptional<ZodArray<ZodString, "many">>; 
    message: ZodString; 
    subject: ZodString; 
    to: ZodArray<ZodString, "many">; 
}, "strip", ZodTypeAny, { 
    message: string; 
    subject: string; 
    to: string[]; 
    bcc?: string[]; 
    cc?: string[]; 
}, { 
    message: string; 
    subject: string; 
    to: string[]; 
    bcc?: string[]; 
    cc?: string[]; 
}> = ...