Are `{}@gmail.com` and `%@gmail.com` valid email addresses?

[mertssmnoglu]

Runtime

nodejs

Runtime version

18.19.1

Module version

17.12.2

Used with

standalone, typescript

Any other relevant information

No response

How can we help?

An email including curly brackets really allowed?

I created a standalone nodejs application to check validations in different libraries. I use joi and zod at the same time to see the differences.

import z from "zod"
import Joi from "joi"

// Here are my test mails
const mailMatrix = ["()@gmail.com", "{}@gmail.com", "%@gmail.com"]

const joiSchema = Joi.object({
  email: Joi.string().email(),
})

const zodSchema = z.object({
  email: z.string().email(),
})

Here are my validate functions to joi and zod.

const validateZod = (inputs: unknown) => {
  let isValidForZod: boolean
  try {
    zodSchema.parse(inputs)
    isValidForZod = true
  } catch (error) {
    isValidForZod = false
  }

  return isValidForZod
}

const validateJoi = (inputs: unknown) => {
  const res = joiSchema.validate(inputs)
  return res.error ? false : true
}

When i want to see are them valid or not with this map

mailMatrix.map((mail) => {
  const data = {
    email: mail,
  }
  const results = {
    joi: validateJoi(data),
    zod: validateZod(data),
  }

  console.log(`JOI | ${mail} ->`, results.joi)
  console.log(`ZOD | ${mail} ->`, results.zod)
  console.log("-------------------------------------------------")
})

Results: true -> valid false -> invalid

How is it possible for someone to have a curly brackets email or percent sign. Is it a bug or something like that?

[Marsup]

Those adresses are following the RFC, this doesn't mean that gmail will accept those, but they are valid.

[mertssmnoglu]

OK. Thanks for the answer.