Regular Expression สำหรับ Email Address Validation

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หา valid email address

^(?!\b[a-zA-Z0-9._-]+@ [a-zA-Z0-9_.-]+\.[a-zA-Z0-9]{2,}\b).*$

หาก invalid email address

^(?=\b[a-zA-Z0-9._-]+@ [a-zA-Z0-9_.-]+\.[a-zA-Z0-9]{2,}\b).*$