454 authentication failed, please open SMTP flag first!

Source: Internet
Author: User

1. Error description

454 authentication failed, please open SMTP flag first! Exception in thread "main" Javax.mail.AuthenticationFailedExceptionat Javax.mail.Service.connect (service.java:267) At Javax.mail.Service.connect (service.java:137) at Com.you.mail.model.SendMessage.sendMessage (sendmessage.java:70 ) at Com.you.mail.model.SendMessage.main (sendmessage.java:89)

2. Cause of error

Today, I wrote a small instance of sending a message. At first, I used the 163 mailbox to test, and then the QQ mailbox test, 163 mailbox is opened SMTP service, and QQ mailbox is not opened, resulting in error

3. Solutions

(1) Open the QQ mailbox, opened the SMTP service;

(2) test with another mailbox (SMTP service enabled).

Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.

454 authentication failed, please open SMTP flag first!

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.