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Couldn't connect to host, port: smtp.gmail.com, 587; timeout -1; nested exception is: java.net.ConnectException: Connection timed out: connect at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1961) at
com.sun.mail.util.MailConnectException: Couldn't connect to host, port: smtp.gmail.com, 587; timeout -1; nested exception is: java.net.ConnectException: Connection timed out: connect at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1961) at com.sun.mail.smtp.SMTPTransport.protocolConnect(SMTPTransport.java:654) at javax.mail.Service.connect(Service.java:345) at javax.mail.Service.connect(Service.java:226) at gmailYeni.SendMail.sendFromGMail(SendMail.java:52) at gmailYeni.SendMail.main(SendMail.java:20)     `Caused by: java.net.ConnectException: Connection timed out: connect	at java.net.TwoStacksPlainSocketImpl.socketConnect(Native Method)	at java.net.AbstractPlainSocketImpl.doConnect(Unknown Source)	at java.net.AbstractPlainSocketImpl.connectToAddress(Unknown Source)	at java.net.AbstractPlainSocketImpl.connect(Unknown Source)	at java.net.PlainSocketImpl.connect(Unknown Source)	at java.net.SocksSocketImpl.connect(Unknown Source)	at java.net.Socket.connect(Unknown Source)	at java.net.Socket.connect(Unknown Source)	at com.sun.mail.util.SocketFetcher.createSocket(SocketFetcher.java:297)	at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:229)	at com.sun.mail.smtp.SMTPTransport.openServer(SMTPTransport.java:1927)