解決郵件發送錯誤：503 Error: need EHLO and AUTH first

引用文章

https://blog.csdn.net/lingfeian/article/details/96731620

問題描述

2019-07-21 16:14:00.449 ERROR 9668 — [pool-1-thread-1] c.w.i.c.m.s.i.EmailMessageServiceImpl : Failed messages: com.sun.mail.smtp.SMTPSendFailedException: 503 Error: need EHLO and AUTH first !
;
nested exception is:
com.sun.mail.smtp.SMTPSenderFailedException: 503 Error: need EHLO and AUTH first !
org.springframework.mail.MailSendException: Failed messages: com.sun.mail.smtp.SMTPSendFailedException: 503 Error: need EHLO and AUTH first !
;
nested exception is:
com.sun.mail.smtp.SMTPSenderFailedException: 503 Error: need EHLO and AUTH first !
at org.springframework.mail.javamail.JavaMailSenderImpl.doSend(JavaMailSenderImpl.java:490) ~[spring-context-support-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:360) ~[spring-context-support-5.1.6.RELEASE.jar:5.1.6.RELEASE]
at org.springframework.mail.javamail.JavaMailSenderImpl.send(JavaMailSenderImpl.java:355) ~[spring-context-support-5.1.6.RELEASE.jar:5.1.6.RELEASE]

問題原因

報這個錯的原因是郵箱登錄需要設置安全碼，切記安全碼不是郵箱密碼。

解決方案

將原來設計的密碼改成獲取到的安全碼，

由於每種郵箱的安全碼獲取方式不一樣，這里就不在詳細說明了