Sometimes HCL Notes crashes when opening MIME emails.

This behaviour occurs in HCL Notes 12.0.2FP7 and later. The Notes client consistently crashes when attempting to open certain MIME email messages. When such an email is opened, the client becomes unresponsive for a short period and then terminates unexpectedly.

Workaround
As a temporary workaround, increase the Java thread stack size used by the Notes client.

Open the file jvm.properties located in the Notes installation directory under \framework\rcp\deploy. Locate the parameter vmarg.Xss=-Xss1m and change it to vmarg.Xss=-Xss2m.

If required, this value can be increased further, up to a maximum of -Xss16m. After making the change, save the file and restart the Notes client for the change to take effect.


This issue is fixed in HCL Notes 14.5.1 FP1. Here´s the link to the official KB entry.