grails mail connection refused

it seems i have tried the mail config in the way that its docs said, but still i get:

Error 500: Executing action [x] of controller [x] caused exception: Mail server connection failed; nested exception is javax.mail.MessagingException: Could not connect to SMTP 

I am using google apps for my email - me@dogself.com is using gmail. i cannot get grails to send out a test message on my dev box (win 7).

my config is:

   host = "smtp.gmail.com"
   port = 465
   username = "autoresponse@dogself.com"
   password = "x"
   props = ["mail.smtp.auth":"true",
            "mail.smtp.debug":"true",
            "mail.smtp.starttl开发者_开发百科s.enable":"true",
            "mail.smtp.socketFactory.port":"465",
            "mail.smtp.socketFactory.class":"javax.net.ssl.SSLSocketFactory",
            "mail.smtp.socketFactory.fallback":"false"]

edit: do i need to have some sort of a signed key to support ssl connection to gmail?

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Try the following:

props = ["mail.transport.protocol":"smtps",
         "mail.smtps.host":"smtp.gmail.com",
         "mail.smtps.port":"465",
         "mail.smtps.auth":"true"]

That seems to be the standard set of params necessary to connect to Google's SMTP server. The key thing is to use smtps instead of smtp plus TLS.

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Switch to using the Grails Mail Plugin and give it another try. There is a sample configuration for Gmail near the end of that web page.

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What happens if you remove:

mail.smtp.starttls.enable: "true"

I've gotten mine to work without that.

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You have two conflicting properties in your "props" declaration:

"mail.smtp.starttls.enable":"true" is used for a plaintext handshake with the server, and then starts TLS encryption negotiations with the server.

"mail.smtp.socketFactory.class":"javax.net.ssl.SSLSocketFactory" requires an encrypted handshake.

The port you specified (465) could work with either, but is normally for encrypted use. If the server supports it, I would suggest using the first property "mail.smtp.starttls.enable":"true" and augment it with "mail.smtp.starttls.required":"true" to ensure that your messages are encrypted between your application and the SMTP server, and remove the "mail.smtp.socketFactory.class":"javax.net.ssl.SSLSocketFactory"