上傳到服務器后javamail發郵件異常
原來是ECS基於安全考慮，禁用了端口25。
改成465就可以發郵件了。
p.setProperty("mail.smtp.socketFactory.class", "javax.net.ssl.SSLSocketFactory"); p.setProperty("mail.smtp.socketFactory.port", "465");
p.setProperty("mail.smtp.port", "465");
阿里雲ecs : Couldn't connect to host, port: smtp.aliyun.com, 25; timeout -1;
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阿里雲的郵箱smtp默認是開啟的，只需要賬號，密碼，host需要填寫為smtp.mxhichina.com， 端口25就能發送郵件，但需要在阿里雲驗證才能開25端口