Connection failure

[pditommaso]

When using the mail connection I can only manage to send two email messages. After the second I'm getting the following exceptions.

backend_1   | com.sun.mail.smtp.SMTPSendFailedException: 451 Timeout waiting for data from client.
backend_1   | 
backend_1   |   at com.sun.mail.smtp.SMTPTransport.issueSendCommand(SMTPTransport.java:2358)
backend_1   |   at com.sun.mail.smtp.SMTPTransport.mailFrom(SMTPTransport.java:1823)
backend_1   |   at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1300)
backend_1   |   at org.nlab.smtp.transport.connection.DefaultClosableSmtpConnection.doSend(DefaultClosableSmtpConnection.java:105)
backend_1   |   at org.nlab.smtp.transport.connection.DefaultClosableSmtpConnection.sendMessage(DefaultClosableSmtpConnection.java:38)
... omitted 

Trying again:

backend_1   | javax.mail.MessagingException: Can't send command to SMTP host
backend_1   |   at com.sun.mail.smtp.SMTPTransport.sendCommand(SMTPTransport.java:2415)
backend_1   |   at com.sun.mail.smtp.SMTPTransport.sendCommand(SMTPTransport.java:2402)
backend_1   |   at com.sun.mail.smtp.SMTPTransport.issueSendCommand(SMTPTransport.java:2332)
backend_1   |   at com.sun.mail.smtp.SMTPTransport.mailFrom(SMTPTransport.java:1823)
backend_1   |   at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1300)
backend_1   |   at org.nlab.smtp.transport.connection.DefaultClosableSmtpConnection.doSend(DefaultClosableSmtpConnection.java:105)
backend_1   |   at org.nlab.smtp.transport.connection.DefaultClosableSmtpConnection.sendMessage(DefaultClosableSmtpConnection.java:38)
... omitted 

Then, trying to send another mail

backend_1   | java.lang.IllegalStateException: Not connected
backend_1   |   at com.sun.mail.smtp.SMTPTransport.checkConnected(SMTPTransport.java:2510)
backend_1   |   at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1257)
backend_1   |   at org.nlab.smtp.transport.connection.DefaultClosableSmtpConnection.doSend(DefaultClosableSmtpConnection.java:105)
backend_1   |   at org.nlab.smtp.transport.connection.DefaultClosableSmtpConnection.sendMessage(DefaultClosableSmtpConnection.java:38)
backend_1   |   at io.seqera.watchtower.service.MailServiceImpl.sendMail(MailServiceImpl.groovy:157)
backend_1   |   at io.seqera.watchtower.service.UserServiceImpl.sendAccessEmail(UserServiceImpl.groovy:67)
... omitted 

then the above error persists. Am I missing something obvious?

[nithril]

How have you configured the pool?

On Tue, May 28, 2019 at 10:20 PM Paolo Di Tommaso notifications@github.com wrote:

When using the mail connection I can only manage to send two email messages. After the second I'm getting the following exceptions.

backend_1 | com.sun.mail.smtp.SMTPSendFailedException: 451 Timeout waiting for data from client. backend_1 | backend_1 | at com.sun.mail.smtp.SMTPTransport.issueSendCommand(SMTPTransport.java:2358) backend_1 | at com.sun.mail.smtp.SMTPTransport.mailFrom(SMTPTransport.java:1823) backend_1 | at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1300) backend_1 | at org.nlab.smtp.transport.connection.DefaultClosableSmtpConnection.doSend(DefaultClosableSmtpConnection.java:105) backend_1 | at org.nlab.smtp.transport.connection.DefaultClosableSmtpConnection.sendMessage(DefaultClosableSmtpConnection.java:38) ... omitted

Trying again:

backend_1 | javax.mail.MessagingException: Can't send command to SMTP host backend_1 | at com.sun.mail.smtp.SMTPTransport.sendCommand(SMTPTransport.java:2415) backend_1 | at com.sun.mail.smtp.SMTPTransport.sendCommand(SMTPTransport.java:2402) backend_1 | at com.sun.mail.smtp.SMTPTransport.issueSendCommand(SMTPTransport.java:2332) backend_1 | at com.sun.mail.smtp.SMTPTransport.mailFrom(SMTPTransport.java:1823) backend_1 | at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1300) backend_1 | at org.nlab.smtp.transport.connection.DefaultClosableSmtpConnection.doSend(DefaultClosableSmtpConnection.java:105) backend_1 | at org.nlab.smtp.transport.connection.DefaultClosableSmtpConnection.sendMessage(DefaultClosableSmtpConnection.java:38) ... omitted

Then, trying to send another mail

backend_1 | java.lang.IllegalStateException: Not connected backend_1 | at com.sun.mail.smtp.SMTPTransport.checkConnected(SMTPTransport.java:2510) backend_1 | at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1257) backend_1 | at org.nlab.smtp.transport.connection.DefaultClosableSmtpConnection.doSend(DefaultClosableSmtpConnection.java:105) backend_1 | at org.nlab.smtp.transport.connection.DefaultClosableSmtpConnection.sendMessage(DefaultClosableSmtpConnection.java:38) backend_1 | at io.seqera.watchtower.service.MailServiceImpl.sendMail(MailServiceImpl.groovy:157) backend_1 | at io.seqera.watchtower.service.UserServiceImpl.sendAccessEmail(UserServiceImpl.groovy:67) ... omitted

then the above error persists. Am I missing something obvious?

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[pditommaso]

I'm creating passing my own session:

        def factory = new SmtpConnectionFactory(session, this, this)
        pool = new SmtpConnectionPool(factory)

and this implements the following methods:

    @Override
    final void connect(Transport transport) throws MessagingException {
        transport.connect(host, port as int, user, password)
    }

    @Override
    final Transport getTransport(Session session) throws NoSuchProviderException {
        return session.getTransport()
    }