New email window size cannot be adjusted

All of a sudden, the email window that pops up when you click 'new message' in Apple Mail has become huge. Top to bottom it's fine, the width of it stretches way off the screen and is at least two full screens wide. If I move to the right of it and click and drag the bottom right (or anywhere on the right) of the window, it can only make it larger, but not smaller.

It was fine and then all of a sudden it started doing this.

I'm running 10.12.3 and Mail is version 10.2

It's a pretty frustrating problem. :S

Hi Reflex

Trouble-seeking, I think anyway, is best started when using the latest version of the OS. macOS Sierra is now 10.12.4 and I would advise you to update to that now. It takes no time at all and is strongly recommended.

I would then reboot the Mac.

Now, see if that solves the problem.

If not, I have other suggestions; but let's start from there

Ian

Thanks for the response! I just updated to 10.12.4. Same problem persists.

Try dragging the left edge toward the middle, then drag the window over a bit and repeat until the opposite edge appears.

MacInWin said:

Try dragging the left edge toward the middle, then drag the window over a bit and repeat until the opposite edge appears.

Click to expand...

No, that doesn't work either. I can only resize up and down, not left to right.

What type of a Mac is it? Did you use an external monitor with it?

Reflex said:

No, that doesn't work either. I can only resize up and down, not left to right.

Click to expand...

Check to see if you have accidentally turned the Zoom feature on: System Preferences, Accessibility, Zoom.

ferrarr said:

What type of a Mac is it? Did you use an external monitor with it?

Click to expand...

It's a MacBook Pro Retina (Late 2013). Yes, I use an external monitor, but the problem persists on both the laptop itself and when connected to the monitor.

chscag said:

Check to see if you have accidentally turned the Zoom feature on: System Preferences, Accessibility, Zoom.

Click to expand...

Just checked that. Negative.

It was working fine one minute then all of a sudden it went to this enormous message composing window. Any other suggestions? This giant window is driving me crazy.. haha

Couple of thoughts occur to me that might need to be checked out.
1. When the Mail window is open does the menubar appear at the top of the screen? If it doesn't poi may be in full screen mode. Try pressing the Escape key.
2. If you quit Mail and then re-open it does the window appear as a more appropriate size?

Slydude said:

Couple of thoughts occur to me that might need to be checked out.
1. When the Mail window is open does the menubar appear at the top of the screen? If it doesn't poi may be in full screen mode. Try pressing the Escape key.
2. If you quit Mail and then re-open it does the window appear as a more appropriate size?

Click to expand...

Yes, the menu appears. It's not in full screen mode.

I've tried quitting the program and restarting. Same issue persists.

I just discovered something else. I'm using IMAP, but still have my old POP account enabled as I need the history from it. If I open a fresh email send window in my IMAP email. I can't resize it. If I switch it to come from my old POP email, then I can resize it no problem at all. If I switch back to IMAP, I can no longer resize it.

It WAS working fine in IMAP for the longest time, then it suddenly just changed to giving me this super long window which is extremely frustrating.

Hopefully this new information will help in finding a solution. All and any advice is appreciated!

Do you have Onyx, https://www.titanium-software.fr/en/index.html, make sure you have the correct version of Onyx for your version of macOS, they are version specific. Click on the Automation page, under Rebuilding, make sure Mail's Mailboxes option is checked. Then hit execute.

It worked

Reflex said:

All of a sudden, the email window that pops up when you click 'new message' in Apple Mail has become huge.


I tried removing the signature (select no signature) on a new mail window and it resized the window. All new mail windows seem to OK. I hope it works for you as well.

Sam

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