Good day,

I think I may have discovered a work-around to Outlook 2011 becoming unstable on El Capitan.  I opened a Safari connection to our corporate OWA site and authenticated and connected to my inbox.  I then leave Safari connected and open but minimize Safari.

I then open Outlook 2011 and everything works like it should.  It has been working perfectly for the entire day today, so at least I can do my work again.

This has worked for me, so I hope it helps.  As soon as I close Safari and the OWA connection, then Outlook becomes unstable and crashed and I need to force it close.

I trust that this will work.

Regards

Sarel