Seeing MS Error "SMTP STARTTLS failed, aborting connection: Peer reports it experienced an internal error. (-12188)" (Doc ID 2166262.1)

Last updated on AUGUST 05, 2016

Applies to:

Oracle Communications Messaging Server - Version 8.0.0 and later
Information in this document applies to any platform.

Symptoms

We have a specific application failing to connect to the MTA.

In mail.log_current we see:

17.xx.xxx.x SMTP STARTTLS failed, aborting connection: Peer reports it experienced an internal error. (-12188)

On the client side:
"Cannot connect with transport: Cannot connect to SMTP server: mail.abc.com, as: cstation, message: Could not convert socket to TLS, cause: java.lang.RuntimeException: Could not generate DH key pair"

Tried modifying config parameter to:

instance.base.ssladjustciphersuites = +WEAK+DES

but this made no difference.

Changes

Upgraded MTA system from version 7.0.4.35 to 8.0.1.1.

Set tlsminversion TLS1.0

 

Cause

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