连接到POP3服务器会出现无法识别的SSL消息，纯文本连接问题
[英]Connecting to POP3 server gives Unrecognized SSL message, plaintext connection issue
问题描述
Im trying to connect to the POP3 server using the Java API with no SSL. 
我试图使用不带SSL的Java API连接到POP3服务器。
I have set following properties; 我设置了以下属性；
mail.pop3.host :- pop.gmx.com
mail.pop3.password:-XXXX
mail.pop3.user:-XXXX
mail.pop3.port:- 110
But I'm getting the following issue: 但是我遇到了以下问题：
javax.mail.MessagingException: Connect failed;
nested exception is:
javax.net.ssl.SSLException: Unrecognized SSL message, plaintext connection?
at com.sun.mail.pop3.POP3Store.protocolConnect(POP3Store.java:148)
at javax.mail.Service.connect(Service.java:275)
at javax.mail.Service.connect(Service.java:156)
at javax.mail.Service.connect(Service.java:176)
What property did I miss? 我想念什么财产？
1 个解决方案
解决方案1
0 2014-08-21 23:55:48
The page you cite clearly says: 您引用的页面清楚地表明：
POP port: 995 (alternative: 110)
TLS/SSL required: yes (if you use port 110: no)
IOW port 110 is a plaintext port. IOW端口110是纯文本端口。 So use 995 like it says. 因此，请使用995这样说。 Or plaintext. 还是纯文本。
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