Block email providers

[Steveb599]

Hey how to block the temporary email providers with email schema?

[BrendanC23]

The easiest way is probably with superRefine. Docs

const DISALLOWED_DOMAINS = ["@gmail.com"];

const schema = z.string().email().superRefine((email, ctx) => {
    if (DISALLOWED_DOMAINS.some(domain => email.toLowerCase().endsWith(domain))) {
        ctx.addIssue({
            code: z.ZodIssueCode.custom,
            message: "The email domain is not allowed."
        });
    }
});