Re: E-Mail notifications over SMTP

Fri, 15 Apr 2016 04:44:33 -0700

Hi Karl,
 
i had no luck with the java mail properties.
 
The following error occurs when a mail should be sent after a job completion:
 
2016-04-15 13:30:51,595 WARN  [Job reset thread] org.apache.manifoldcf.connectors: Error notifying: Error connecting: 220 mx.smtp.***.de ESMTP Postfix (com.sun.mail.iap.ConnectionException: 220 mx.smtp.***.de ESMTP Postfix)
org.apache.manifoldcf.core.interfaces.ManifoldCFException: Error connecting: 220 mx.smtp.***.de ESMTP Postfix (com.sun.mail.iap.ConnectionException: 220 mx.smtp.***.de ESMTP Postfix)
        at org.apache.manifoldcf.crawler.notifications.email.EmailConnector.handleMessagingException(EmailConnector.java:792)
        at org.apache.manifoldcf.crawler.notifications.email.EmailConnector.getSession(EmailConnector.java:194)
        at org.apache.manifoldcf.crawler.notifications.email.EmailConnector.sendMail(EmailConnector.java:317)
        at org.apache.manifoldcf.crawler.notifications.email.EmailConnector.notifyOfJobEnd(EmailConnector.java:270)
        at org.apache.manifoldcf.crawler.system.JobResetThread.doEndNotifications(JobResetThread.java:260)
        at org.apache.manifoldcf.crawler.system.JobResetThread.run(JobResetThread.java:123)
Caused by: javax.mail.MessagingException: 220 mx.smtp.***.de ESMTP Postfix (com.sun.mail.iap.ConnectionException: 220 mx.smtp.***.de ESMTP Postfix)
        at com.sun.mail.imap.IMAPStore.protocolConnect(IMAPStore.java:668)
        at javax.mail.Service.connect(Service.java:251)
        at org.apache.manifoldcf.crawler.notifications.email.EmailSession.<init>(EmailSession.java:57)
        at org.apache.manifoldcf.crawler.notifications.email.EmailConnector$ConnectThread.run(EmailConnector.java:825)
Caused by: com.sun.mail.iap.ConnectionException: 220 mx.smtp.***.de ESMTP Postfix
        at com.sun.mail.imap.protocol.IMAPProtocol.processGreeting(IMAPProtocol.java:239)
        at com.sun.mail.iap.Protocol.<init>(Protocol.java:120)
        at com.sun.mail.imap.protocol.IMAPProtocol.<init>(IMAPProtocol.java:111)
        at com.sun.mail.imap.IMAPStore.protocolConnect(IMAPStore.java:637)
        ... 3 more
 
There is obviously still some IMAP stuff happening during the send process.
 
The configured notification connection as JSON string:
 
  {"notificationconnection":{"isnew":"false","name":"mail","class_name":"org.apache.manifoldcf.crawler.notifications.email.EmailConnector","max_connections":"10","description":"","configuration":{"_PARAMETER_":[{"_value_":"","_attribute_name":"username"},{"_value_":"","_attribute_name":"password"},{"_value_":"IMAP","_attribute_name":"protocol"},{"_value_":"mx.smtp.***.de","_attribute_name":"server"},{"_value_":"25","_attribute_name":"port"}],"properties":[{"_value_":"","_attribute_name":"protocol","_attribute_value":"smtp"},{"_value_":"","_attribute_name":"type","_attribute_value":"Transport"},{"_value_":"","_attribute_name":"class","_attribute_value":"com.sun.mail.smtp.SMTPTransport"},{"_value_":"","_attribute_name":"vendor","_attribute_value":"Sun Microsystems, Inc."}]}}}
 
Regards,
Markus
 
Gesendet: Mittwoch, 13. April 2016 um 23:45 Uhr
Von: "Markus Schuch" <[email protected]>
An: [email protected]
Betreff: Re: E-Mail notifications over SMTP
Hi Karl,

i will try the Java mail properties you described.

I only concentrated on getting a positive connection working status so far. But now i understand this is not possible because the connection check would only work for POP3 or IMAP mail hosts. However, sending mails might still work with the mentioned properties. I will report back.

Authentication is not an issue for me at the moment because i am running on a host that trusted to do unauthenticated mail-in.

Thanks
Markus
 
Am 13. April 2016 23:07:51 MESZ, schrieb Karl Wright <[email protected]>:
Hi Markus,
 
The email notification connector was repurposed from the email repository connector so the capabilities are somewhat limited and maybe not well targeted as a result.  However, it is a very simple connector, and I suspect that you could modify it easily to do what you need.  The only question I'd have is whether it would continue to serve IMAP and POP3 users as well at that point.
 
 
This is where all the work is done.  The protocol is only used for establishing that the connection is working; it's not used to actually send email at all.  Session setup is therefore the important thing, and that's done right there, using name/value pairs you can configure in the UI.  Here's a URL describing how to do that:
 
 
Now, the only problem with that is that there is no session authenticator declared in EmailSession, so I think that would need work to address.  I'm happy to send you a patch, though, if you want to try it out.  I also would love to have a better means of checking the connection that would not involve a Store, since that supplies a password too but only for setting up the Store object, which is used only for connection checks.
 
There's also this reference:
 
 
... which mentions smtp as a transport protocol, although that may not be material if you set the appropriate other properties as described in the example.
 
protocol=smtp; type=transport; class=com.sun.mail.smtp.SMTPTransport; vendor=Sun Microsystems, Inc.;


 
Anyhow, I'm more than willing to update the connector but it would be great to know what I should actually do to it first.
 
Karl
 
 
 
On Wed, Apr 13, 2016 at 4:37 PM, Markus Schuch <[email protected]> wrote:
Hi,

i wanted to try the email notification connector to send emails on job aborts.

But couldn't get it working with our mx server. The email notification connector only offers POP3 or IMAP protocol. In my world these are for receiving emails. For sending i need SMTP. How am I supposed to configure that? (MCF 2.3)

Thanks in advance
Markus

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