Using java to validate outlook email address

Question

Background: There are some invalid email adress in our system. I want to find all these invalid addresses. Some of these address are outlook address and some are instant message (IM) address.

Issue: I have meet an issue when use SMTP to validate email address. SMTP works when validate outlook address like ab1234@outlook.com. However, SMTP failed to validate instant message (IM) address like bob.archer@corpration.com which does exist.

Is there a method using java to validate instant message (IM) address.

Hope for your reply, Thanks.

Answer 1

Apache commons provides a solid validator that can help you:

https://github.com/apache/commons-validator/blob/trunk/src/main/java/org/apache/commons/validator/EmailValidator.java

You can take a look the link above and use the methods of EmailValidator class.

Answer 2

除了检查电子邮件格式（一个或多个字母数字和/或特殊字符后跟@，再用几个字母数字字符至少用一个“。”分隔）之外，验证任何内容的唯一方法是实际尝试使用它，因为电子邮件或即时消息。