Which version of TLS is supported by JavaMail 1.4?
问题 Which compatible TLS version is used by JavaMail 1.4 ? 回答1: There are four types of TLS versions : TLS 1.0 - It uses RFC 2246 TLS 1.1 - It uses RFC 4346 TLS 1.2 - It uses RFC 5246 TLS 1.3 - It is in development. According to JavaMail 1.4 Docs , it uses RFC 2231 , which is coming under TLSv1.0 version RFC series. So, it can be concluded that TLSv1.0 is only supported by JavaMail 1.4. Check docs for more information. 回答2: Mail servers may be temporarily offline, so unless you want to go through