Q: Window Size Problem with El Capitan

That's not my experience. My experience is that CMD-W, open in doc has been opening to the corrected size. I have now tried it well over 200x just because others were having issues. It's beginning to look like not everyone's set up is exhibiting the same behavior. For me, regardless of whether I'm hitting the red x in the window or CMD-W to close outlook, opening it back up in the dock opens to the corrected size.

I went so far as to make the window small, CMD-Q to set the window size, re-opening it to ensure that it comes up as the small size, made it large, CMD-Q to set the window size, opening it again to ensure that it was the large size followed by 50x of CMD-W and red x to close outlook. Each time, the window opens to the large size.

If it helps, I'm running a mid 2015 MBP 15" running El Capitan 10.11.2 and Outlook 15.17.1.

I had this version of outlook running on a 2011 MBP 15" running Yosemite and never had this issue. It's only when I went to the new laptop that this issue started popping up.

Of course as soon as i said that, I had an instance where the CMD-W, open in dock produce a small outlook window. I hit CMD-W again, open in dock, and it went back to the large window.

I guess we just wait for Apple to fix the issue?

The question is: Is it an OS issue or app issue. For me it is only Outlook, no other app.

try checking for an update for outlook

Dave:  I think you're right -- the glitch doesn't exhibit the same effects for all users. There'd seem to be some other variables...

Corvairkid:  I'm running Outlook 14.5.9 and this window size problem only began with El Cap., never before. I don't know whether it affects the calendar window in a similar way because I never use the calendar facility.

I have not experienced the problem with any other application windows at all.

For the moment I'm sticking with red button close and cycle through + CMD-1 to reopen at the right size because that's what I have always done and it's fast and intuitive.

It would be nice to think that at some point this problem will simply quietly disappear...

Hmm,  Back to the drawing board: red button close + CMD-1 to reopen just failed, producing the small window problem... Back to minimise and then unmrinimise from dock, I think...

The El Cap 10.11.2 update which I just installed today *may* have fixed the Outlook window problem.... Say it carefully and quietly.... I'm using it now and have tried every conceivable way of closing/reopening Outlook and so far it has opened at the previously (correct) window size every time....

That's bad news, corvairkid. At the moment, I am hopeful: Outlook is behaving *perfectly*. Maybe tomorrow or the day after will bring a different story - who knows?

I have found that it works better after the recent El Cap update. There was also a Microsoft update, but don't think it was Outlook specific. I randomly get it opening small but not nearly as often as before. Now if someone could just fix all of the PowerPoint 2016 problems, I can save the rest of my hair.

Yes, I spoke too soon. As corvairkid says and Charles confirms, OSX 10.11.2 offer san improvement in the behaviour of Outlook, but it isn't a full fix. I've already had one window reopening problem this morning...