Description

Symptoms

Self Hosted Instance, you have created an email account, but when testing the connection it shows "Connect failed". The account is configured to use SSL.

Release

Applies to any release.

Environment

Self Hosted Instance

Cause

The SSL handshake fails, to verify this is the issue do the following:

Create the system property based on the Email Account type failing to connect:

For pop3:

Name = glide.pop3.debug

Type = true|false

Value = true

For imap:

Name = glide.imap.debug

Type = true|false

Value = true

For smtp:

Name = glide.smtp.debug

Type = true|false

Value = true

On the instance nodes modify the wrapper.conf file to add the java start property -Djavax.net.debug=all - /glide/nodes/<instance_info>/conf/wrapper.conf:

# NOTE: This spacer is for custom, per-instance expansion:
wrapper.java.additional.9=-Djavax.net.debug=all

Then restart the instance nodes.

Check the wrapper_<date>.log and see the following - in this example glide.pop3.debug is set to true:

INFO | jvm 4 | 2018/03/12 07:53:57.901 | DEBUG: setDebug: JavaMail version 1.5.6
INFO | jvm 4 | 2018/03/12 07:53:57.901 | DEBUG: getProvider() returning javax.mail.Provider[STORE,pop3,com.sun.mail.pop3.POP3Store,Oracle]
INFO | jvm 4 | 2018/03/12 07:53:57.901 | DEBUG POP3: mail.pop3.rsetbeforequit: false
INFO | jvm 4 | 2018/03/12 07:53:57.901 | DEBUG POP3: mail.pop3.disabletop: false
INFO | jvm 4 | 2018/03/12 07:53:57.901 | DEBUG POP3: mail.pop3.forgettopheaders: false
INFO | jvm 4 | 2018/03/12 07:53:57.901 | DEBUG POP3: mail.pop3.cachewriteto: false
INFO | jvm 4 | 2018/03/12 07:53:57.901 | DEBUG POP3: mail.pop3.filecache.enable: false
INFO | jvm 4 | 2018/03/12 07:53:57.901 | DEBUG POP3: mail.pop3.keepmessagecontent: false
INFO | jvm 4 | 2018/03/12 07:53:57.901 | DEBUG POP3: mail.pop3.starttls.enable: false
INFO | jvm 4 | 2018/03/12 07:53:57.901 | DEBUG POP3: mail.pop3.starttls.required: false
INFO | jvm 4 | 2018/03/12 07:53:57.901 | DEBUG POP3: mail.pop3.finalizecleanclose: false
INFO | jvm 4 | 2018/03/12 07:53:57.901 | DEBUG POP3: mail.pop3.apop.enable: false
INFO | jvm 4 | 2018/03/12 07:53:57.901 | DEBUG POP3: mail.pop3.disablecapa: false
INFO | jvm 4 | 2018/03/12 07:53:57.901 | DEBUG POP3: connecting to host "popmail.intel.com", port 995, isSSL true
INFO | jvm 4 | 2018/03/12 07:55:18.303 | [Fatal Error] :1:1: Content is not allowed in prolog.
INFO | jvm 4 | 2018/03/12 07:55:28.516 | - I/O exception (java.net.ConnectException) caught when processing request: Connection refused (Connection refused)
INFO | jvm 4 | 2018/03/12 07:55:28.516 | - Retrying request
INFO | jvm 4 | 2018/03/12 07:55:28.717 | - I/O exception (java.net.ConnectException) caught when processing request: Connection refused (Connection refused)
INFO | jvm 4 | 2018/03/12 07:55:28.717 | - Retrying request
INFO | jvm 4 | 2018/03/12 07:55:29.017 | - I/O exception (java.net.ConnectException) caught when processing request: Connection refused (Connection refused)
INFO | jvm 4 | 2018/03/12 07:55:29.017 | - Retrying request
INFO | jvm 4 | 2018/03/12 07:56:38.907 | DEBUG: setDebug: JavaMail version 1.5.6

Also in the additional SSL debug is this:

INFO | jvm 2 | 2018/03/12 09:08:03.014 | ***
INFO | jvm 2 | 2018/03/12 09:08:03.014 | %% Invalidated: [Session-3, TLS_RSA_WITH_AES_128_CBC_SHA]
INFO | jvm 2 | 2018/03/12 09:08:03.014 | glide.scheduler.worker.1, SEND TLSv1 ALERT: fatal, description = certificate_unknown
INFO | jvm 2 | 2018/03/12 09:08:03.014 | glide.scheduler.worker.1, WRITE: TLSv1 Alert, length = 2
INFO | jvm 2 | 2018/03/12 09:08:03.014 | [Raw write]: length = 7
INFO | jvm 2 | 2018/03/12 09:08:03.014 | 0000: 15 03 01 00 02 02 2E .......
INFO | jvm 2 | 2018/03/12 09:08:03.014 | glide.scheduler.worker.1, called closeSocket()
INFO | jvm 2 | 2018/03/12 09:08:03.014 | glide.scheduler.worker.1, handling exception: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
INFO | jvm 2 | 2018/03/12 09:08:03.014 | adding as trusted cert:
INFO | jvm 2 | 2018/03/12 09:08:03.014 | Subject: CN=eBusiness C-1, O=Secure Inc., C=US
INFO | jvm 2 | 2018/03/12 09:08:03.014 | Issuer: CN=eBusiness C-1, O=Secure Inc., C=US
INFO | jvm 2 | 2018/03/12 09:08:03.014 | Algorithm: RSA; Serial number: 0xc2134
INFO | jvm 2 | 2018/03/12 09:08:03.014 | Valid from Sun Jun 20 21:00:00 PDT 1999 until Sun Jun 21 21:00:00 PDT 2020

This is a SSL handshake error:

INFO | jvm 2 | 2018/03/12 09:08:03.014 | glide.scheduler.worker.1, handling exception: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target

Resolution

There are two possible solutions:

Execute this from the command line of one of the instance nodes, then add the appropriate X.509 SSL certificate to the instance:

openssl s_client -connect <email account hostname>:<SSL port> -showcerts

For example:

openssl s_client -connect mymail.sn.com:995 -showcerts

You should see an X.509 cert that looks something like this in the output:

-----BEGIN CERTIFICATE-----
MIIFPTCCBCWgAwIBAgIQYPiq3h8HUIMAAAAAUN/oujANBgkqhkiG9w0BAQsFADCB
.......
liGTZg98uJJfH/PQMfGzX20sG5QerWom+0VkvF4xDWZ+VDZFHNNCOQnb1U+/GIDT
5Q==
-----END CERTIFICATE-----

Take that and on the instance go to System Definition -> Certificates -> select New:

Name = <name of your choice>
In the "PEM Certificate" field copy and paste everything including the -----BEGIN CERTIFICATE----- and -----END CERTIFICATE----- and of course all of the base-64 encoding between

Save that and try the connection again

This avoids the need to supply the X.509 SSL certificate in the instance from the first solution above, modify or create these two system properties as follows:

Name = com.glide.communications.trustmanager_trust_all

Type = true|false

Value = true

and

Name = com.glide.communications.httpclient.verify_hostname